Unified Interior Regions

Arizona

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.

States L2 Landing Page Tabs

Filter Total Items: 142
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...

Date published: July 8, 2019
Status: Active

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

We are working to develop 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 REEs to industry in the United States. Geologic, geophysical, and geochemical data acquired will be used to develop permissive tracts for REE related deposits and to define...

Contacts: Mark Bultman
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:

Date published: June 26, 2019
Status: Active

Information by Region-Arizona

  

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...

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.

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....

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....

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...

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...

Date published: March 27, 2019
Status: Completed

Grover Photo Collection

The Apollo Lunar Roving Vehicle was an engineering marvel, but It would have collapsed on Earth under the weight of a suited astronaut. That's because it was designed to operate in lunar gravity, which pulls with about 15% as much force as Earth gravity. In the 1960s, engineers at the U.S. Geological Survey's Astrogeology Branch built a near-copy of the Apollo rover that could...

Filter Total Items: 62
Date published: January 27, 2020

Geochemical and X-ray diffraction analyses of drill core samples from the Canyon uranium-copper deposit, a solution-collapse breccia pipe, Grand Canyon area, Coconino County, Arizona

This data release compiles the major and trace element analytical results of drill core samples that typify the uranium-copper ore bodies of the Canyon deposit, located about 6.1 miles (10 km) south-southeast of Tusayan, Arizona. The Canyon deposit lies from about 750 to 2,000 ft (230 to 610 m) below the surface at latitude 35.88333 North, longitude -112.09583 West (datum WGS 19

Date published: September 26, 2019

Data for assessing the susceptibility of groundwater used for drinking water supply from selected principal aquifers of the Western United States, 2004-2018

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 (

Date published: September 6, 2019

Drainage basins and characteristics for selected streamgages within the Southern Rockies Landscape Conservation Cooperative domain

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 SRLC

Date published: June 12, 2019

GCMRC GIS Base Map Viewer 2.0

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...

Date published: June 12, 2019

GCMRC REST Services Page

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.

Date published: May 10, 2019

Predicted Shorelines for High Flows on the Colorado River Application

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...

Date published: April 30, 2019

Sandbar Monitoring Sites - Remote Camera Photographs Application

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...

Date published: April 29, 2019

Geospatial Data Abstraction Library (GDAL)

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...

Date published: April 29, 2019

Astro Web Maps

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...

Date published: January 1, 2019

Surface Materials Data from Breccia-Pipe Uranium Mine and Reference Sites, Arizona, USA

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. Sampl

Date published: December 6, 2018

Downloadable Data for Northern Arizona Oil and Gas Assessments

GIS Data for Northern Arizona Oil and Gas Assessments 

Filter Total Items: 44
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.

Mars Themis Day Mosaics
November 5, 2018

The objective of this work is to assemble and cartographically control Thermal Emission Imaging System (THEMIS; Christensen et al. 2004) daytime infrared (IR) and nighttime IR images. In a cartographically controlled mosaic, individual images are registered to one another so that all feature boundaries align. This intermediate mosaic (a “semi-controlled” mosaic) is then registered to a known...

Mars Themis Night Mosaics
November 5, 2018

The objective of this work is to assemble and cartographically control Thermal Emission Imaging System (THEMIS; Christensen et al. 2004) daytime infrared (IR) and nighttime IR images. In a cartographically controlled mosaic, individual images are registered to one another so that all feature boundaries align. This intermediate mosaic (a “semi-controlled” mosaic) is then registered to a known...

Tile Map MOLA
November 5, 2018

The objective of this work is to assemble and cartographically control Thermal Emission Imaging System (THEMIS; Christensen et al. 2004) daytime infrared (IR) and nighttime IR images. In a cartographically controlled mosaic, individual images are registered to one another so that all feature boundaries align. This intermediate mosaic (a “semi-controlled” mosaic) is then registered to a known...

Perspective views of the central peak of Tsiolkovskiy crater Digital elevation data derived from Apollo Panoramic images
November 5, 2018

USGS LMMP products will soon be available at the LMMP Portal. These include very large high resolution DTMs and orthomosaics of close to 50 key sites on the lunar surface, and high resolution controlled polar mosaics. These products constitute an important initial step in processing LRO datasets and should greatly facilitate the exploration and study of these significant lunar sites.

Portion of the Coprates quad which includes Valles Marineris
November 5, 2018

This global image map of Mars has a resolution of 256 pixels/degree (scale approximately 231 m/pixel at the equator). The black-and-white mosaic is processed to emphasize local topographic features. This mosaic, known as Mars Digital Image Model (MDIM) 2.1, replaces two earlier mosaics produced by the USGS from the same set of approximately 4600 Viking Orbiter images...

Mars Control Vectors
November 5, 2018

Distributed here are control network data for solar system bodies (planets, moons, and asteroids) other than the Earth. Each control network is essentially a set of photogrammetric or radargrammetric solution (input and output) files. The input files consist of, aside from a priori information, measurements of common points (control points, or sometimes tie points) on images of...

Mars MOLA Tracks
November 5, 2018

The U.S. Geological Survey has recently completed a final revised version of its 231 m/pixel global Viking image mosaic of Mars that has substantially improved geodetic accuracy compared to versions released in 1991 and 2001. This mosaic, known as MDIM 2.1, is currently available in the USGS ISIS file format and will be formatted and submitted to the NASA Planetary Data System (PDS) in...

THEMIS nighttime infrared mosaic of Gale crater, landing site of the Mars Science Laboratory rover
November 5, 2018

The main science objective of the Mars Science Laboratory (MSL) is to explore and quantitatively assess the habitability and environmental history of a local region on the martian surface. This mission will use a variety of instruments carried on a rover platform that are designed to assess the biological potential, characterize the geology, investigate planetary processes that influence...

A full image scan of a Zond8 photograph
November 5, 2018

Photographic hardcopy scans of 1970 photographs captured by a Soyuz 7K-L1 unmanned spacecraft on the soviet Zond8 mission. This data along with data from Apollo, Lunar Orbiter and Galileo missions is part of a collection commonly referred to as the Lunar Consortium Data.

Filter Total Items: 134
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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.

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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.

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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.

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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.

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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.

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Year Published: 2009

Mapping and monitoring Mt. Graham Red Squirrel habitat with GIS and thematic mapper imagery

To estimate the Mt. Graham red squirrel (MGRS) population, personnel visit a proportion of middens each year to determine their occupancy (Snow in this vol.). The method results in very tight confidence intervals (high precision), but the accuracy of the population estimate is dependent upon knowing where all the middens are located. I...

Sanderson, H. Reed; Koprowski, John L.; Hatten, James R.; Koprowski, John L.

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Year Published: 2008

Ground-water, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona— 2006-07

The N aquifer is the major source of water in the 5,400 square-mile Black Mesa area in northeastern Arizona. Availability of water is an important issue in northeastern Arizona because of continued water requirements for industrial and municipal use and the needs of a growing population. Precipitation in the Black Mesa area is typically about 6 to...

Truini, Margot; Macy, J. P.

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Year Published: 2008

Use of Superposition Models to Simulate Possible Depletion of Colorado River Water by Ground-Water Withdrawal

According to the 'Law of the River', wells that draw water from the Colorado River by underground pumping need an entitlement for the diversion of water from the Colorado River. Consumptive use can occur through direct diversions of surface water, as well as through withdrawal of water from the river by underground pumping. To develop methods for...

Leake, Stanley A.; Greer, William; Watt, Dennis; Weghorst, Paul
Use of Superposition Models to Simulate Possible Depletion of Colorado River Water by Ground-Water Withdrawal; 2008; SIR; 2008-5189; Leake, Stanley A.; Greer, William; Watt, Dennis; Weghorst, Paul

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Year Published: 2007

Dissolved solids in basin-fill aquifers and streams in the southwestern United States

The U.S. Geological Survey National Water-Quality Assessment Program performed a regional study in the Southwestern United States (Southwest) to describe the status and trends of dissolved solids in basin-fill aquifers and streams and to determine the natural and human factors that affect dissolved solids. Basin-fill aquifers, which include the...

Anning, David W.; Bauch, Nancy J.; Gerner, Steven J.; Flynn, Marilyn E.; Hamlin, Scott N.; Moore, Stephanie J.; Schaefer, Donald H.; Anderholm, Scott K.; Spangler, Lawrence E.
Dissolved Solids in Basin-Fill Aquifers and Streams in the Southwestern United States; 2007; SIR; 2006-5315; Anning, David W.; Bauch, Nancy J.; Gerner, Steven J.; Flynn, Marilyn E.; Hamlin, Scott N.; Moore, Stephanie J.; Schaefer, Donald H.; Anderholm, Scott K.; Spangler, Lawrence E.

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Year Published: 2007

Using a remote sensing/GIS model to predict southwestern Willow Flycatcher breeding habitat along the Rio Grande, New Mexico

Introduction The Southwestern Willow Flycatcher (Empidonax traillii extimus; hereafter SWFL) is a federally endangered bird (USFWS 1995) that breeds in riparian areas in portions of New Mexico, Arizona, southwestern Colorado, extreme southern Utah and Nevada, and southern California (USFWS 2002). Across this range, it uses a variety of plant...

Hatten, James R.; Sogge, Mark K.
Using a Remote Sensing/GIS Model to Predict Southwestern Willow Flycatcher Breeding Habitat along the Rio Grande, New Mexico; 2007; OFR; 2007-1207; Hatten, James R.; Sogge, Mark K.

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Year Published: 2007

Ground-water, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona— 2005-06

The N aquifer is the major source of water in the 5,400 square-mile Black Mesa area in northeastern Arizona. Availability of water is an important issue in northeastern Arizona because of continued water requirements for industrial and municipal use and the needs of a growing population. Precipitation in the Black Mesa area averages about 6 to 14...

Truini, Margot; Macy, J. P.

Filter Total Items: 255
March 15, 2021

B-Roll of Lees Ferry

A collection of video for use in products related to the USGS's streamgage at Lees Ferry. The USGS installed the Lees Ferry gauge 100 years ago, and the data collected since have become critical to monitoring water availability in the West.

Shot List:

  • 0:00 Title slide
  • 0:25 Lees Ferry streamgage wide shot and pan
  • 0:33 Lees Ferry
January 22, 2021

Gearing up for Landing Day—USGS Mars Rover Team (Dr. Ryan Anderson)

Gearing up for Landing Day - An Interview with USGS Scientist and Mars Rover Team Member, Dr. Ryan Anderson

USGS Astrogeology has been involved in the Perseverance Mission from selecting the landing site and generating a map of the area that is on board the rover to rover operations once Perseverance lands on the red planet. Learn more about Astrogeology's

January 5, 2021

Gearing up for Landing Day—USGS Mars Rover Team (Alicia Vaughn)

Gearing up for Landing Day - An Interview with USGS Contractor and Mars Rover Team Member, Alicia Vaughan

USGS Astrogeology has been involved in the Perseverance Mission from selecting the landing site and generating a map of the area that is on board the rover to rover operations once Perseverance lands on the red planet. Learn more about Astrogeology's involvement

January 5, 2021

Gearing up for Landing Day—USGS Mars Rover Team (Dr. Ken Herkenhoff)

Gearing up for Landing Day - An Interview with USGS Scientist and Mars Rover Team Member, Dr. Ken Herkenhoff

USGS Astrogeology has been involved in the Perseverance Mission from selecting the landing site and generating a map of the area that is on board the rover to rover operations once Perseverance lands on the red planet. Learn more about Astrogeology's

November 30, 2020

La encrucijada del fuego silvestre

La relación entre la gente y los incendios forestales siempre ha sido paradójica: el fuego es esencial como proceso ecológico y herramienta de gestión, pero también puede ser perjudicial para la vida y la propiedad. En consecuencia, los regímenes de incendios se han modificado a lo largo de la historia, mediante quemas intencionales para promover sus beneficios o mediante

November 30, 2020

Wildfire at the Crossroads

The relationship between people and wildfire has always been paradoxical: fire is an essential ecological process and management tool but can also be detrimental to life and property. Consequently, fire regimes have been modified throughout history through both intentional burning to promote benefits and active suppression to reduce risks. Reintroducing fire and its

San Miguel River, Colorado, Fall 2020
November 1, 2020

San Miguel River, Colorado, Fall 2020

Looking upstream on the San Miguel River in Colorado in fall 2020 when baseflow (groundwater flowing to streams) is the primary contributor to streamflow.

September 22, 2020

Hydrography Updates for USFS Southwestern Region in AZ and NM

National Hydrography Advisory Call

Joel Osuna-Williams on Hydrography Updates for USFS Southwestern Region in AZ and NM.

The U.S. Forest Service Southwestern Region (Region 3) conducted an NHD Assessment in 2015 on its need for and benefits of updated hydrography for the lands it manages. In 2016-19, they partnered with the Center for Geospatial Science

July 29, 2020

Lake Powell - Topobathymetric Digital Elevation Model

This video is a three-dimensional (3D) view of Lake Powell topobathymetric digital elevation model, which consists of topography (land elevation) and bathymetry (water depth). The 3D topobathymetric model was developed by the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center to support generation of the Colorado River water storage area

July 9, 2020

Image of the Week - Virtual Road Trip with Landsat

Summer vacation plans changed for many in 2020. Whatever your plans, Landsat can take you on a virtual road trip. Landsat 8, in its sun-synchronous polar orbit, views every national park in the U.S. every 16 days and gathers more photographic data than the most ambitious of tourists.
 

June 11, 2020

Land Treatment Exploration Tool: A Quick Introduction

This is a quick introduction video to the Land Treatment Exploration Tool. This short video includes a summary of the tool with screen clips of the fact sheet, web tool, and an example Site Characterization Report.

These tutorial videos were created to aid in the use of the Land Treatment Exploration Tool (LTET). These videos

June 11, 2020

Land Treatment Exploration Tool—Step 1: Describe Proposed Treatment

This video describes Step 1 of the Land Treatment Exploration Tool. In Step 1 the user defines a name, the planned treatment/s, and a file name for exported items.

These tutorial videos were created to aid in the use of the Land Treatment Exploration Tool (LTET). These videos guide a user through the main steps of the tool.

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An infographic summarizing activities of the RAMPS program.
August 10, 2020

This season's edition of the Restoration Assessment and Monitoring Program for the Southwest Newsletter contains recent program highlights including research updates, new projects, field updates and more.

To subscribe to our newsletter, please visit: https://listserv.usgs.gov/mailman/listinfo/ramps

Read more about how the network or RAMPS is enhancing restoration in drylands.

mars2020 landing zone
July 27, 2020

FLAGSTAFF, Ariz. – When you’re planning to explore someplace new, it’s always a good idea to bring a map so you can avoid dangerous terrain. This is true whether you’re heading out for a hike on Earth or you’re landing a rover on Mars.

Dragonfly larvae being held in an open hand
July 21, 2020

A team of federal, academic, and NGO researchers conducted a national-scale assessment of mercury bioaccumulation in aquatic ecosystems using dragonfly larvae as biosentinels.

USGS scientist Ted Kennedy uses a net to collect invertebrates in front of the Glen Canyon Dam.
July 8, 2020

A new study describes how food web dynamics influence the movement of mercury throughout the Colorado River in the Grand Canyon. This new research from the U.S. Geological Survey and partners represents one of the first times that the movement and fate of mercury has been traced through an entire food web.

TNMCorps Mapping Challenge: City/Town Halls in AZ, NM and UT w/ Incorporated Places
January 16, 2020

Calling all Peer Reviewers and Advanced Editors! This challenge is SO CLOSE to being finished!! 

TNMCorps Mapping Challenge: City/Town Halls in AZ, NM and UT
January 6, 2020

This challenge is close to being finished with over 100 points added since our last update - nice work!  However, there are still several green points that we need our Peer Reviewers and Advanced Editors to help review.

TNMCorps Mapping Challenge: City/Town Halls in AZ, NM and UT
December 18, 2019

Here is the weekly update for this challenge!  If you're looking for a break from the snow and the cold, come take a virtual tour of the southwest while helping us to collect city/town hall structures! 

TNMCorps Mapping Challenge: City/Town Halls in AZ, NM and UT
December 12, 2019

Topo maps in the West will soon be updated, so we've opened a new challenge for city/town halls in Utah, New Mexico, and Arizona!  

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.

Filter Total Items: 84