Unified Interior Regions

Arizona

States L2 Landing Page Tabs

The Southwest Region includes California, Nevada, and Arizona. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

News

Date published: October 15, 2019

The Ups and Downs of Groundwater Levels after the July 2019 Ridgecrest, CA Earthquakes

Effects from the two July 2019 Ridgecrest, CA earthquakes were observed in several USGS continuous groundwater-level monitoring sites in California, Nevada, and Arizona.

Date published: April 25, 2019

GCMRC Updates

The Grand Canyon Monitoring and Research Center currently has 11 active science projects as a part of its Triennial Work Plan (FY2018-2020) for work conducted as the science provider to the Glen Canyon Dam Adaptive Management Program.  New developments, recent publications and other current activities will be listed here.  Check here to find out the latest information from the Center.

Date published: April 11, 2019

Salinity Cycles in Lower Colorado River Caused by Precipitation Patterns in Upper Basin

A new study shows that mysterious cycles in salinity in the lower Colorado River are a result of precipitation patterns in the headwaters of the upper basin more than a thousand river miles away. The salinity levels generally repeat about every 10 years.

Filter Total Items: 133
RPIF Logo
Date Published: October 29, 2019
Status: Active

RPIF Digitized Film Collection

The RPIF's 15-mm film collection contains historic films related to astronaut training, equipment field tests, geological expiditions and more. Select from the videos on the right to play it. Scroll down for more videos. Videos may take a few minutes to load.

USGS science for a changing world logo
Date Published: July 31, 2019
Status: Active

Terrestrial Analog Sample Collections

The Astrogeology Terrestrial Analog Sample Collections include three individual sample collections: the Meteor Crater Sample Collection, the Flynn Creek Crater Sample Collection, and the Shoemaker Sample Collection (embed links to individual pages; add buttons to click to go to individual pages). 

 

Click Related Science tab above to navigate to the individual...

USGS science for a changing world
Date Published: July 8, 2019
Status: Active

Concealed Rare Earth Element (REE) Terranes in the Southern Basin and Range Geologic Province

The project is developing an understanding of the types, sizes, and spatial distribution of rare earth element (REE) related deposits in the southern Basin and Range geologic province to help ensure the availability of rare earth elements to the U.S.

Contacts: Mark Bultman
USGS
Date Published: July 1, 2019
Status: Active

Lunar Legacy at the USGS Astrogeology Science Center

Click on the links below to explore USGS Astrogeology Center's involvement in the Apollo program and lunar legacy:

USGS
Date Published: June 26, 2019
Status: Active

Information by Region-Arizona

  

Grand Canyon Map content grid
Date Published: June 11, 2019
Status: Active

GCMRC Online Maps

The Grand Canyon Monitoring and Research Center maintains an enterprise GIS platform built upon ESRI ArcGIS Server and Portal applications.  This enterprise system allows for spatial data, maps and analytical tools to be served through online applications.  The Geospatial Science and Technology project provides access to this content through different avenues.  Online maps can be accessed...

View of Colorado River confluence with the Little Colorado River
Date Published: June 11, 2019
Status: Active

GCMRC Data Releases

Data releases made available by GCMRC can be found here as they are published via the USGS Fundamental Science Practices (FSPs).  Individual science product links will take users to the USGS ScienceBase website for each entry.

 

Click on Data and Tools Tab to see list of Data Releases.

Baerbel Lucchitta
Date Published: May 13, 2019
Status: Completed

Baerbel Lucchitta

Dr. Baerbel Lucchitta was one of the first women in the field of Astrogeology. She started her career by mapping the Moon and instructing the Apollo Astronauts. She worked extensively on the Valles Marineris canyons on Mars, is a vigorous protagonist of glacial flow and other ice-related features on Mars, and was awarded the Geological Society of America, Planetary Geology Division, G.K....

Native fish monitoring trip, Colorado River, Grand Canyon
Date Published: April 30, 2019
Status: Active

GCMRC Scientist & Staff Directory

Below is a list of GCMRC scientists and key project support staff with their contact information provided.  Names and positions are linked to each individual's USGS staff profile page (where applicable), so click there to find out more about each person's background, research interests and science products.  Clicking on email addresses will generate a new email message to that individual....

Grand Canyon Map content grid
Date Published: April 29, 2019
Status: Active

GCMRC Data and Tools

The Grand Canyon Monitoring and  Research Center offers a collection of data resources and online tools -- including web maps, applications, and other content -- that convey scientific information related to on-going monitoring of the Colorado River.  Some applications are a culmination of long-term monitoring work, while others are developed around more a specific set of information usually...

A huge canyon surrounded by deep-set cliffs opens to reveal a sunny gorge and part of the Colorado River.
Date Published: April 24, 2019
Status: Active

Grand Canyon Monitoring and Research Projects

The Grand Canyon Monitoring and Research Center currently functions under a Triennial Work Plan (TWP) which is thoroughly reviewed and vetted both internally within the Center and through the GCDAMP Technical Work Group (TWG) and the Adaptive Management Work Group (AMWG).  These advisory panels have been a part of the Glen Canyon Dam...

Application to explore US Oil and Gas Assessments
Date Published: April 19, 2019
Status: Active

United States Assessments of Undiscovered Oil and Gas Resources

USGS Energy Resources Program provides periodic assessments of the oil and natural gas endowment of the United States and the World (click here for information about World Oil and Gas Assessments).  This website provides access to new, prioritized, assessment results and supporting data for the United States, as part...

Filter Total Items: 47
USGS
October 1, 2019

Beginning in November of 2015, a project was undertaken to reanalyze approximately 60,000 archived sample splits collected as part of the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) project from selected areas in Arizona, California, Idaho, Montana, Nevada, New Mexico, and Utah. A small amount (approximately 0.25 g) of sieved -75 micron s

USGS
September 26, 2019

Groundwater age distribution and susceptibility to natural and anthropogenic contaminants were assessed for selected principal aquifers of the Western United States: the Central Valley aquifer system (CVAL), the Basin and Range basin-fill aquifers (BNRF), the Rio Grande aquifer system (RIOG), the High Plains aquifer (HPAQ), the Columbia Plateau basaltic-rock aquifers (CLPT), and the Colorado Plat

USGS
September 6, 2019

Streamflow and basin-characteristic data are needed for a variety of scientific applications including estimation of flow in ungaged basins and hydro-ecological classification of rivers. The U.S. Geological Survey (USGS), in cooperation with the Bureau of Reclamation and the Southern Rockies Landscape Conservation Cooperative (SRLCC), selected a subset of streamgages across the SRLCC domain tha

Screen image of GCMRC online map wret compliant
June 12, 2019

The Geospatial team of the Grand Canyon Monitoring and Research Center maintains an enterprise GIS system built upon ESRI ArcGIS Server and Portal applications.  This web application provides access to many of the most commonly used GIS layers and base data information used by GCMRC in support of on-going science projects. 

Click here to launch the Base Map Viewer (2.0) in a separate window.

Screen image of geospatial REST services page
June 12, 2019

The Geospatial team of Grand Canyon Monitoring and Research Center maintains an enterprise GIS system built upon ESRI ArcGIS Server and Portal applications.  From this platform, geospatial content can be consumed in a variety of forms, from custom-built web applications to content hosted on ESRI's ArcGIS Online to direct access of web map services provided here on our REST services page.

Image from GIS of modeled flowline for High Flow Event, Colorado River
May 10, 2019

This application highlights modeled flows of the Colorado River for a discharge of 41,000 cubic feet per second (cfs) that is approximate to recent (2012 - 2018) and future anticipated water releases associated with a High Flow Experiments conducted from Glen Canyon Dam near Page, Arizona.  These data are to help visualize the water levels during High Flow Events in relation to other map layers.

Long-term sandbar monitoring, remote camera photography web application, screen shot
April 30, 2019

GCMRC and Northern Arizona University have engaged in long-term monitoring of 45 sandbar sites along the Colorado River in Grand Canyon for close to three decades.  Remote cameras have been established to monitor sandbar changes in between site surveys that occur every Fall.   This application provides access to thousands of photos, with an option to view photos around specific high flow events.

USGS
April 29, 2019

The Geospatial Data Abstraction Library is a translator library for raster geospatial data formats that is released under an X/MIT style Open Source license by the Open Source Geospatial Foundation. As a library, it presents a single abstract data model for all supported formats. It also comes with a variety of useful commandline utilities for data translation and processing...

USGS
April 29, 2019

Our Web Mapping Services (WMS) and Web Feature Services (WFS) are based on Open Geospatial Consortium standards and allow capable mapping clients to view full-resolution planetary mosaicked Basemaps.  Besides being available for community use, these services are critical for many of our others sites including Planetary NomenclaturePlanetary Geologic Mapping web site ...

NWIS Mapper screenshot
March 5, 2019

The NWIS mapper provides access to over 1.5 million sites contained in the USGS National Water Information System (NWIS), including sites where current and historical surface-water, groundwater, springs, and atmospheric data has been collected. Users can search by site type, data type, site number, or place.

USGS
January 1, 2019

This data release includes elemental analysis of soil samples collected at breccia-pipe uranium mines, at one undeveloped breccia-pipe uranium deposit, and at a reference site in northern Arizona. Samples were collected near the Arizona 1, Canyon, Kanab North, and Pinenut uranium mines, over the EZ2 breccia-pipe uranium deposit, and at the Little Robinson Tank reference site. Samples were collec

Image of data download web page
December 6, 2018

GIS Data for Northern Arizona Oil and Gas Assessments 

Filter Total Items: 36
Application to explore US Oil and Gas Assessments
March 19, 2019

This map shows the provinces assessed by the USGS for undiscovered oil and gas resources. 

MRCTR Logo
November 28, 2018

The USGS Astrogeology Mapping, Remote-sensing, Cartography, Technology, and Research (MRCTR, pronounced "Mercator") GIS Lab provides web-based resources aimed at the planetary research community. The lab supports Geographic Information Systems (GIS) graphical, statistical, and spatial tools for analyses of planetary data, including the distribution of planetary GIS tutorials, tools, programs...

Mercury global mosaic using flyby MESSENGER data
November 9, 2018

This mosaic represents the best geodetic map of Mercury's surface to date. MESSENGER's three flybys alone provide 90.90% of the data in the global mosaic (see Table above). Although MESSENGER went in to safe mode during the third flyby, the approach imaging was acquired and contributes ~6.82% additional coverage from earlier versions. Only the poles remain to be imaged, some of which...

Kaguya MI Olivine Snap
November 9, 2018

This page introduces the Kaguya Multiband Imager derived spectral and derived mineral maps by the Japan Aerospace Exploration Agency (JAXA) and the University of Hawaii. The mosaics were created from topographically-corrected MI reflectance data acquired by the JAXA SELENE/Kaguya mission (see Ohtake et al., 2013) from the Kaguya Archive MI MAP processing level version 2 (MI MAP_02) products.

USGS
November 9, 2018

This project focused on geometric restoration of hyperspectral imagery from the Moon Mineralogy Mapper (M3 or M3) instrument that flew as a guest instrument on the Indian Space Research Organization’s (ISRO) Chandrayaan-1 (Ch1) spacecraft (e.g., Goswami and Annadurai, 2009; Pieters et al., 2009; Boardman et al., 2011; Green et al., 2011). The primary objective of this work is to geometrically...

Clementine Comparison
November 9, 2018

The Clementine near-infrared (NIR) images have been made available in two near-global (70° N to 70° S) reduced-resolution mosaics. The two versions include a standard calibrated and empirically calibrated multi-spectral (6-band) ISIS cube at 500 m/pixel spatial resolution.

Pluto New Horizons Global Mosaic 300m
November 5, 2018

New Horizons launched on Jan. 19, 2006 as part of NASA’s New Frontiers Program. The spacecraft will help scientists back on Earth study the surface and atmosphere of the dwarf planet Pluto, its moons and objects in the Kuiper belt—a region of our solar system beyond Neptune containing tens of thousands of objects. The USGS Astrogeology Science Center is committed to NASA’s New Horizons mission. 

Moon Apollo Image Processing
November 5, 2018

In the early 1970s, specialized cameras onboard the Command Modules of the last three Apollo missions (15, 16, 17) photographed nearly 25% of the Moon in stunning detail. Today, scientists from Flagstaff’s U.S. Geological Survey, Arizona State University, and NASA are working together to reconstruct the lunar surface from these nearly 50-year-old photographs.

Mercury MESSENGER Global DEM 665m (64ppd) v2 Oct. 2016
November 5, 2018

From the USGS press release: 

The first topographic map of Mercury was released by the U.S. Geological Survey, Arizona State University, Carnegie Institute of Washington, Johns Hopkins University Applied Physics Laboratory and NASA. This high-resolution map provides the first comprehensive view of Mercury’s entire surface, illustrating the planet’s craters, volcanoes and tectonic landforms...

Themis global thermal-inertia tile map
November 5, 2018

This product is a global thermal inertia mosaic of Mars generated from high-resolution Thermal Emission Imaging System (THEMIS) nighttime infrared images (Christensen et al., 2004; Fergason et al., 2006a) that allows the identification, assessment, and global correlation of martian surface materials. The higher spatial resolution of THEMIS data (100 m per pixel), relative to Thermal Emission...

Kaguya TC Ortho V02 Global Mosaic 474m (64ppd)
November 5, 2018

The Japan Aerospace Exploration Agency (JAXA) launched "KAGUYA (SELENE)" to obtain scientific data of the lunar origin and evolution and to develop the technology for the future lunar exploration. With permission from JAXA, researchers at the U.S. Geological Survey (USGS) Astrogeology Science Center have compiled and are releasing multiple near-global mosaics derived from data acquired by the...

Gusev Crater Thermal Emission Imaging System (THEMIS) Infrared mosaic
November 5, 2018

In 2003-2005, the USGS worked under the guidance of NASA's Mars Critical Data Products Initiative to conduct research on how controlled large area or global 2001 Mars Odyssey THEMIS IR image mosaics could be generated. The products listed here represent a sampling of the significant data files generated during that research.

Filter Total Items: 126
Publication Thumbnail
Year Published: 2018

Groundwater-storage change and land-surface elevation change in Tucson Basin and Avra Valley, south-central Arizona--2003-2016

The U.S. Geological Survey monitors groundwater-storage change and land-surface elevation change caused by groundwater withdrawal in Tucson Basin and Avra Valley—the two most populated alluvial basins within the Tucson Active Management Area. The Tucson Active Management Area is one of five active management areas in Arizona established by the...

Carruth, Robert L.; Kahler, Libby M.; Conway, Brian D.
Carruth, R.L., Kahler, L.M., and Conway, B.D., 2018, Groundwater-storage change and land-surface elevation change in Tucson Basin and Avra Valley, south-central Arizona—2003–2016: U.S. Geological Survey Scientific Investigations Report 2018–5154, 34 p., https://doi.org/10.3133/sir20185154.

Publication Thumbnail
Year Published: 2018

Bat community response to silvicultural treatments in bottomland hardwood forests managed for wildlife in the Mississippi Alluvial Valley

Silvicultural treatments (e.g., selective timber harvests) that are prescribed to promote wildlife habitat are intended to alter the physical structure of forests to achieve conditions deemed beneficial for wildlife. Such treatments have been advocated for management of bottomland hardwood forests on public conservation lands in the Mississippi...

Ketzler, Loraine P.; Comer, Christopher E.; Twedt, Daniel J.
Ketzler, L. P., Comer, C. E., and Twedt, D. J., 2018, Bat community response to silvicultural treatments in bottomland hardwood forests managed for wildlife in the Mississippi Alluvial Valley: Forest Ecology and Management, v. 417, p. 40-48. https://doi.org/10.1016/j.foreco.2018.02.047

Publication Thumbnail
Year Published: 2017

Magnetic monitoring in Saguaro National Park

On a sandy, arid plain, near the Rincon Moun­tain Visitor Center of Saguaro National Park, tucked in among brittlebush, creosote, and other hardy desert plants, is an unusual type of observatory—a small unmanned station that is used for monitor­ing the Earth’s variable magnetic field. Named for the nearby city of Tucson, Arizona, the observatory...

Love, Jeffrey J.; Finn, Carol A.; Gamez Valdez, Yesenia C.; Swann, Don
Love, J.J., Finn, C.A., Gamez Valdez, Y.C., Swann, Don, 2017, Magnetic monitoring in Saguaro National Park: U.S. Geological Survey Fact Sheet 2017–3035, 2 p., https://doi.org/10.3133/fs20173035.

Publication Thumbnail
Year Published: 2017

Geochemistry and hydrology of perched groundwater springs: assessing elevated uranium concentrations at Pigeon Spring relative to nearby Pigeon Mine, Arizona (USA)

The processes that affect water chemistry as the water flows from recharge areas through breccia-pipe uranium deposits in the Grand Canyon region of the southwestern United States are not well understood. Pigeon Spring had elevated uranium in 1982 (44 μg/L), compared to other perched springs (2.7–18 μg/L), prior to mining operations at the nearby...

Beisner, Kimberly R.; Paretti, Nicholas V.; Tillman, Fred; Naftz, David L.; Bills, Donald; Walton-Day, Katie; Gallegos, Tanya J.
Beisner, K.R., Paretti, N.V., Tillman, F.D., Naftz, D.L., Bills, D.J., Walton-Day, K., and Gallegos, T.J., 2017, Geochemistry and hydrology of perched groundwater springs: assessing elevated uranium concentrations at Pigeon Spring relative to nearby Pigeon Mine, Arizona (USA), Hydrogeology Journal, vol. 25, issue 2, p. 539-556.

Publication Thumbnail
Year Published: 2016

Element concentrations in surface soils of the Coconino Plateau, Grand Canyon region, Coconino County, Arizona

This report provides the geochemical analyses of a large set of background soils collected from the surface of the Coconino Plateau in northern Arizona. More than 700 soil samples were collected at 46 widespread areas, sampled from sites that appear unaffected by mineralization and (or) anthropogenic contamination. The soils were analyzed for 47...

Van Gosen, Bradley S.
Van Gosen, B.S., 2016, Element concentrations in surface soils of the Coconino Plateau, Grand Canyon region, Coconino County, Arizona: U.S. Geological Survey Open-File Report 2016–1160, 9 p. http://dx.doi.org/10.3133/ofr20161160.

Publication Thumbnail
Year Published: 2016

Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974

The Defense Minerals Administration (DMA), Defense Minerals Exploration Administration (DMEA), and Office of Minerals Exploration (OME) mineral exploration programs were active over the period 1950–1974. Under these programs, the Federal Government contributed financial assistance in the exploration for certain strategic and critical minerals. The...

Frank, David G.
Frank, D.G., 2016, Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974: U.S. Geological Survey Data Series 1004, http://dx.doi.org/10.3133/ds1004.

Publication Thumbnail
Year Published: 2014

Mapping and monitoring Mount Graham red squirrel habitat with Lidar and Landsat imagery

The Mount Graham red squirrel (Tamiasciurus hudsonicus grahamensis) is an endemic subspecies located in the Pinaleño Mountains of southeast Arizona. Living in a conifer forest on a sky-island surrounded by desert, the Mount Graham red squirrel is one of the rarest mammals in North America. Over the last two decades, drought, insect...

Hatten, James R.
Mapping and monitoring Mount Graham red squirrel habitat with Lidar and Landsat imagery; 2014; Article; Journal; Ecological Modelling; Hatten, James R.

Publication Thumbnail
Year Published: 2014

Riparian restoration framework for the Upper Gila River, Arizona

This technical report summarizes the methods and results of a comprehensive riparian restoration planning effort for the Gila Valley Restoration Planning Area, an approximately 53-mile portion of the upper Gila River in Arizona (Figure 1-1). This planning effort has developed a Restoration Framework intended to deliver science-based guidance on...

Orr, Bruce K.; Leverich, Glen L.; Diggory, Zooey E.; Dudley, Tom L.; Hatten, James R.; Hultine, Kevin R.; Johnson, Matthew P.; Orr, Devyn A.
Riparian restoration framework for the Upper Gila River, Arizona; 2014; Organization Series; Orr, Bruce K.; Leverich, Glen L.; Diggory, Zooey E.; Dudley, Tom L.; Hatten, James R.; Hultine, Kevin R.; Johnson, Matthew P.; Orr, Devyn A.

Publication Thumbnail
Year Published: 2011

Probability and volume of potential postwildfire debris flows in the 2011 Wallow burn area, eastern Arizona

This report presents a preliminary emergency assessment of the debris-flow hazards from drainage basins burned in 2011 by the Wallow wildfire in eastern Arizona. Empirical models derived from statistical evaluation of data collected from recently burned drainage basins throughout the intermountain western United States were used to estimate the...

Ruddy, Barbara C.
Probability and volume of potential postwildfire debris flows in the 2011 Wallow burn area, eastern Arizona; 2011; OFR; 2011-1214; Ruddy, Barbara C.

Publication Thumbnail
Year Published: 2011

Probability and volume of potential postwildfire debris flows in the 2011 Horseshoe II burn area, southeastern Arizona

This report presents a preliminary emergency assessment of the debris-flow hazards from drainage basins burned in 2011 by the Horseshoe II wildfire in southeastern Arizona. Empirical models derived from statistical evaluation of data collected from recently burned drainage basins throughout the intermountain western United States were used to...

Ruddy, Barbara C.
Probability and volume of potential postwildfire debris flows in the 2011 Horseshoe II burn area, southeastern Arizona; 2011; OFR; 2011-1197; Ruddy, Barbara C.

Publication Thumbnail
Year Published: 2011

Probability and volume of potential postwildfire debris flows in the 2011 Monument burn area, southeastern Arizona

This report presents a preliminary emergency assessment of the debris-flow hazards from drainage basins burned by the Monument wildfire in southeastern Arizona, in 2011. Empirical models derived from statistical evaluation of data collected from recently burned drainage basins throughout the intermountain Western United States were used to...

Ruddy, Barbara C.; Verdin, Kristine L.
Probability and volume of potential postwildfire debris flows in the 2011 Monument burn area, southeastern Arizona; 2011; OFR; 2011-1181; Ruddy, Barbara C. ; Verdin, Kristine L.

Publication Thumbnail
Year Published: 2010

Hydrological, geological, and biological site characterization of breccia pipe uranium deposits in Northern Arizona

On July 21, 2009, U.S. Secretary of the Interior Ken Salazar proposed a two-year withdrawal of about 1 million acres of Federal land near the Grand Canyon from future mineral entry. These lands are contained in three parcels: two parcels on U.S. Bureau of Land Management land to the north of the Grand Canyon (North and East Segregation Areas) and...

Alpine, Andrea E.
Hydrological, Geological, and Biological Site Characterization of Breccia Pipe Uranium Deposits in Northern Arizona; 2010; SIR; 2010-5025; Alpine, Andrea E., ed.

Filter Total Items: 1
USGS
September 10, 2018

This is the home page for ISIS, a digital image processing software package. The focus of the software is to manipulate imagery collected by current and past NASA and International planetary missions sent throughout our Solar System.

Filter Total Items: 197
Ecosystems Podcast Series Episode 5 artwork
October 3, 2019

Outstanding in the Field (Ep 5): Fish in the Grand Canyon

The USGS Ecosystems Mission Area brings you Outstanding in the Field, a series of stories about our science, our adventures, and our efforts to better understand our fish and wildlife and the ecosystems that support them. In this episode we describe some of the one-of-a-kind native fish species that call the Grand Canyon segment of the Colorado River home.
 

July 16, 2019

Image of the Week - Moon Craters in Arizona

Before landing on the surface of the moon in 1969, astronauts Neil Armstrong and Buzz Aldrin needed a training ground that matched their destination's cratered surface.

In the U.S., that turned out to be northern Arizona. Starting in 1967, the U.S. Geological Survey used hundreds of pounds of dynamite to blast holes into the surface of ancient lava fields south of

...
Image screen shot of GCMRC sediment monitoring application
June 11, 2019

GCMRC sediment monitoring application landing page

Image screen shot of GCMRC sediment monitoring application

December 31, 2018

A partnership to protect critical infrastructure (Audio-Described)

This video is an introduction to the partnership between the USGS Arizona Water Science Center and the Arizona Department of Transportation, or ADOT, as it is referred to throughout the video. These two agencies are working together, using cutting edge technology and methods, to understand how flood flows interact with and impact critical infrastructure. These data will

...
December 31, 2018

A partnership to protect critical infrastructure

This video is an introduction to the partnership between the USGS Arizona Water Science Center and the Arizona Department of Transportation, or ADOT, as it is referred to throughout the video. These two agencies are working together, using cutting edge technology and methods, to understand how flood flows interact with and impact critical infrastructure. These data will

...
Image from an application that navigates users through USGS National Oil and Gas Assessment Provinces
November 14, 2018

National Oil and Gas Assessment Provinces

This is a graphic from the USGS National Oil and Gas Assessment Explorer application, which allows user to drill into 70 oil and gas assessment provinces throughout the United States.

Flooding at Vekol Wash, Arizona
October 2, 2018

Flooding at Vekol Wash, Arizona

Flooding at Vekol Wash today, south of Phoenix, following remnant rains from Hurricane Rosa. 

Remote Camera, 30-mile Camp (River MIe 30.7)
September 29, 2018

Remote Camera, 30-mile Camp (River MIe 30.7)

Remote Camera, 30-mile Camp (River MIe 30.7)

September 27, 2018

A USGS guide for finding and interpreting high-water marks (AD)

High-water marks provide valuable data for understanding recent and historical flood events. The proper collection and recording of high-water mark data from perishable and preserved evidence informs flood assessments, research, and water resource management. This video provides guidance for skilled high-water mark identification, including marks left behind in natural and

...
David Scott(right) and James Irwin(left) in the Lunar Roving Vehicle trainer
September 5, 2018

David Scott and James Irwin in the Lunar Roving Vehicle "Grover"

In preperation for Apollo 15, David Scott and James Irwin trained with a training version of the Lunar Rover known as the "Grover". Apollo 15 was the first mission to bring a rover. This allowed the astronauts to cover a larger distance and explore a larger area. 

A RestoreNet garden with plots covered by white cloth.
August 31, 2018

RestoreNet garden testing seedling establishment.

The RestoreNet gardens test seedlings of priority restoration species across the Southwest. This is a recently installed garden located in the juniper woodlands of the Colorado Plateau. The experiemental network will support land managers by providing insight into various restoration techniques, including testing seedlings vs seeds.

A restoration field trial site on red soils, adjacent to buttes.
August 16, 2018

A RestoreNet Garden on the Colorado Plateau

A completed restoration field trial site just after installation. Half of the site is seeded, and the other half had plants and weed cloth (white fabric) installed. RAMPS will be collecting data on this site for

...
Filter Total Items: 179
aerial view of road damage after the Ridgecrest, CA earthquake
October 15, 2019

Effects from the two July 2019 Ridgecrest, CA earthquakes were observed in several USGS continuous groundwater-level monitoring sites in California, Nevada, and Arizona.

Colorado River Lees Ferry at sunrise
April 25, 2019

The Grand Canyon Monitoring and Research Center currently has 11 active science projects as a part of its Triennial Work Plan (FY2018-2020) for work conducted as the science provider to the Glen Canyon Dam Adaptive Management Program.  New developments, recent publications and other current activities will be listed here.  Check here to find out the latest information from the Center.

A huge canyon surrounded by deep-set cliffs opens to reveal a sunny gorge and part of the Colorado River.
April 11, 2019

A new study shows that mysterious cycles in salinity in the lower Colorado River are a result of precipitation patterns in the headwaters of the upper basin more than a thousand river miles away. The salinity levels generally repeat about every 10 years.

This is a photo of a view of Lake Powell's south shore.
March 18, 2019

Mercury concentrations within Lake Powell are highest in side canyons within the lower portion of the reservoir, according to a new U.S. Geological Survey report. This finding is part of a study to better understand why mercury concentrations in striped bass are higher in the lower part of the reservoir.

rock dam
December 7, 2018

Laura Norman's Aridland Water Harvesting Study helps lead a tour of a restoration and monitoring project at the Boy Scouts of America, Heard Scout Pueblo (HSP) in Phoenix, Arizona.

Photo of desert landscape with arch formations in foreground and mountains in background
November 26, 2018

Adaptation and assessment practitioners gathered at the inaugural Southwest Adaptation Forum (SWAF) in October 2018, to identify shared challenges, lessons learned, and opportunities for future collaboration.

Drill rig to collect sediment samples on Lake Powell.
November 20, 2018

Reporters: RSVP to Visit Coring Site on Lake Powell

Flooding at Vekol Wash, Arizona
October 2, 2018

Reporters: Do you want to accompany a USGS field crew as they measure flooding? Please contact Jennifer LaVista or Jim Leenhouts

USGS
March 29, 2018

Clarifying Latitude and Longitude for Planets besides Earth

Low-Flying Helicopter
March 6, 2018

Note to Editors: In the public interest, and in accordance with FAA regulations, the USGS is announcing this low-level airborne project. Your assistance in informing the local communities is appreciated.

Dry wash in San Rafael Desert with white surface salts
January 25, 2018

Salinity loads that originate from groundwater within the Upper Colorado River Basin have decreased from 1986-2011, according to a new U.S. Geological Survey study done in cooperation with the Colorado River Basin Salinity Control Program.

Prairie dog and SPV bait
December 13, 2017

About 70 percent of wild prairie dogs successfully ingested baits containing an oral sylvatic plague vaccine, or SPV, that were distributed throughout their habitats, according to a new U.S. Geological Survey study.

Filter Total Items: 83