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Province 5019 Eastern Great Basin National Oil and Gas Assessments
Date Published: November 19, 2018
Status: Active

Eastern Great Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Eastern Great Basin Province of eastern Nevada, western Utah, southeastern Idaho, and northwestern Arizona 5019:

  • 2019 Continuous Assessment of Oil and Gas in Mississippian Delle Phosphatic Member (FS 2019-3062
  • ...
Mars Ice
Date Published: November 19, 2018
Status: Completed

South Pole

Jets on Mars

Nature, August 2006. CO2 Jets on Mars: Scientists have now found a better explanation for the dark spots and fans found on the south polar region of Mars. These spots, which can cover tens of square kilometers, are visible in the cryptic region. Originally, it was suggested that the spots were soil, exposed after early defrosting...

Mars Ice
Date Published: November 16, 2018
Status: Completed

All About Ice

Why Study Ice on Mars?

On Earth, there’s a plethora of variables driving environmental change, from natural processes to the activities of humans. While Mars is most similar to Earth of all the known extraterrestrial worlds, its climate is still extremely different from our watery abode. The recent discovery of ice on the red planet’s surface has given us a new climate driver to study....

Mars Ice
Date Published: November 16, 2018
Status: Completed

Instruments, Data, and Software

Instruments, Data, and Software

Mars Ice
Date Published: November 16, 2018
Status: Active

Consortium Meetings

Consortium Meetings

Consortium hosted meetings will be listed below. If you would like to attend any of these meetings, please be sure to register. Should your plans change after you register, you may simply reregister with your changes detailed appropriately.

Please follow these links to view summaries of past consortium hosted workshops.

Mars Ice
Date Published: November 14, 2018
Status: Completed

North Pole

North Pole News

Mars Ice
Date Published: November 14, 2018
Status: Completed

Mars Ice

The Mars-Ice project is a joint project between the USGS Astrogeology Research Program (Flagstaff, AZ) and the Arizona State University Mars Space Flight Facilty (Tempe, AZ) to bring together a single resource for the exploration of martian ices. Much of this research is done at the USGS Flagstaff Science Center.

Mars Dunes
Date Published: November 14, 2018
Status: Completed

Data And Instruments

Data and Instruments

Mars Dunes
Date Published: November 14, 2018
Status: Completed

The Mars Global Digital Dune Database

The Mars Global Digital Dune Database (MGD3)

The Mars Global Digital Dune Database (MGD3)was compiled and released in three parts, encompassing the area from latitude 65°N to 65°S, from 60°N to 90°N (the north polar region), and from 60° to 90°S (south polar region). All the remote sensing data for both GIS and non-GIS users is available online in three U.S. Geological Survey...

Mars Dunes
Date Published: November 14, 2018
Status: Completed

Mars Dune Image Galleries

Mars Dune Image Galleries: CRISM, THEMIS, MOC and HiRISE

Mars Dunes
Date Published: November 14, 2018
Status: Completed

Dune Classification

A detailed classification system for Martian dunes is currently in the works. However, we have summarized current classifications below. You can find more information on terrestrial dune classification by clicking here.

Mars Dunes
Date Published: November 9, 2018
Status: Completed

Consortium Announcements and Meetings

Consortium hosted meetings will be listed below. If you would like to attend any of these meetings, please be sure to register. Should your plans change after you register, you may simply reregister with your changes detailed appropriately.

Filter Total Items: 47
USGS
January 1, 2018

Small mammal lung tissue sections were examined to help assess the effects of weathering on bioavailability and toxicity from sites in different phases of the mine cycle within the Grand Canyon area. Hematoxylin and eosin slides of lung tissue from brush mouse, deer mice, and pocket gophers were examined by a veterinary pathologist who marked areas of the tissue that showed normal, inflamm

USGS science for a changing world
September 21, 2017

These data provide information about vegetation structure and composition associated with Arizona Grasshopper Sparrow territories, nest plots, and random transects on two study sites in southeastern Arizona. Data were collected from 2009 through 2013.

USGS science for a changing world
August 25, 2017

These data include descriptions of all roadside segments surveyed, including GPS waypoints and verbal descriptions for each point (every half mile), survey data collected on roadside surveys in 2003-2005 in the months of July and August, along roads within the known breeding range of the Arizona Grasshopper Sparrow (Ammodramus savannarum ammolegus).

Janet Ruth releasing a color-banded male Grasshopper Sparrow. Photo by Noel Snyder.
July 6, 2017

The Arizona Grasshopper Sparrow (Ammodramus savannarum ammolegus) occurs in the desert and plains grasslands of southeastern Arizona, southwestern New Mexico, and northern Sonora, Mexico. This data was produced as part of the first intensive study of its life history and breeding ecology, providing baseline data and facilitating comparisons with other North American Grasshopper Sparrow subspecies.

USGS
April 1, 2017

Mineral groups identified through automated analysis of remote sensing data acquired by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) were used to generate a map showing the type and spatial distribution of hydrothermal alteration, other exposed mineral groups, and green vegetation across the northwestern conterminous United States. Boolean algebra was used to

Screen shot of the data release for SIR 2017-5009
March 7, 2017

This USGS data release consists of the synthetic stream network and associated catchments used to develop spatially referenced regressions on watershed attributes (SPARROW) model of dissolved-solids sources and transport in the Upper Colorado River Basin as well as geology and selected Basin Characterization Model (BCM) data used as input to the model.

Image: Arizona Upland Plant Community in the Sonoran Desert
January 27, 2017

This study uses growth in vegetation during the monsoon season measured from LANDSAT imagery as a proxy for measured rainfall. NDVI values from 26 years of pre- and post-monsoon season Landsat imagery were derived across Yuma Proving Ground (YPG) in southwestern Arizona, USA.

Image of the contents of a repeat photo stake folder.
January 1, 2017

The USGS Southwest Repeat Photography Collection (‘Collection’), formerly named the Desert Laboratory Repeat Photography Collection, is now housed by the Southwest Biological Science Center (SBSC) in Flagstaff, Arizona. It contains images from the late 1800s to mid-2000s, and was assembled over decades by now retired USGS scientists Drs. Robert H.

USGS
August 4, 2016

These data are part of a larger USGS project to develop an updated geospatial database of mines, mineral deposits and mineral regions in the United States. Mine and prospect-related symbols, such as those used to represent prospect pits, mines, adits, dumps, tailings, etc., hereafter referred to as “mine” symbols or features, are currently being digitized on a st

Structure datasets for the nation from The National Map
April 20, 2016

USGS data portray selected structures data, including the location and characteristics of manmade facilities. Characteristics consist of a structure's physical form (footprint), function, name, location, and detailed information about the structure. The types of structures collected are largely determined by the needs of the disaster planning and response and homeland security organizations.

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Apollo 12 color panorama taken by Charles Conrad
November 5, 2018

The following 360° panoramas were created using digitized photographs collected by the astronauts during the Apollo 11 - 17 lunar exploration missions. The imagery and maps were prepared as part of a project by a USGS team under funding from the USGS Technology Transfer Program and NASA's Planetary Geology and Geophysics Program. Dr. Christopher D. Condit (U. Massachusetts) and Mr. Richard...

Callisto Mercator projection mosaic
November 5, 2018

This global map of Callisto utilizes the best image quality and moderate resolution coverage supplied by Galileo SSI (Solid State Imaging instrument) and Voyager 1 and 2. The image processing was performed at USGS using the Integrated Software for Imagers and Spectrometers (ISIS) system. The image data was selected on the basis of overall image quality, reasonable input resolution, and ...

Ganymede Image Mosaic Map based on data from the Galileo Orbiter Solid-State Imaging (SSI) camera and the Voyager 1 and 2
November 5, 2018

This global map base of Ganymede utilizes the best image quality and moderate resolution coverage supplied by Galileo SSI (Solid State Imaging instrument) and Voyager 1 and 2. The image processing was performed at USGS using the Integrated Software for Imagers and Spectrometers (ISIS) system. The image data was selected on the basis of overall image quality, reasonable input resolution...

Color Galileo mosaic merged with high-resolution Voyager mosaic
November 5, 2018

This basemap of Jupiter’s moon Io was produced by combining the best images from both the Voyager 1 and Galileo Missions. Although the subjovian hemisphere of Io was poorly seen by Galileo, superbly detailed Voyager 1 images cover longitudes from 240?W to 40?W and the nearby southern latitudes. A monochrome mosaic of the highest resolution images from both Galileo and Voyager 1 was assembled...

Mercator projection mosaic
November 5, 2018

This global map base of Europa utilizes the best image quality and moderate resolution coverage supplied by Galileo SSI (Solid State Imaging instrument) and Voyager 1 and 2. The image processing was performed here at USGS using the Integrated Software for Imagers and Spectrometers (ISIS) system. The image data was selected on the basis of overall image quality, reasonable input resolution...

Apollo 14 Traverse Map
November 5, 2018

This page features several maps showing routes the astronauts took during extravehicular activities (EVAs). The imagery and maps were prepared as part of a project by a USGS team under funding from the USGS Technology Transfer Program and NASA's Planetary Geology and Geophysics Program. Dr. Christopher D. Condit (U. Massachusetts) and Mr. Richard Kozak provided scientific and technical...

Venus Magellan Globe
November 2, 2018

Download, print, and make your own planetary globes! The number, size, and placement of text annotations were chosen to provide a general orientation of prominent features on a 12-inch globe. Features are labeled with names approved by the International Astronomical Union. A specialized program was used to create the "flower petal" appearance of the photomosaic; the areas of each petal from 0 ...

USGS
September 28, 2018

Meteor Crater is a 180 m deep, 1.2 km diameter bowl-shaped impact crater in Northern Arizona, and has long been a terrestrial analog site for planetary exploration. During the 1960’s, Eugene Shoemaker trained NASA astronauts at the crater to prepare for the Apollo missions to the Moon. The Meteor Crater Sample Collection consists of geologic samples from the Meteor Crater ejecta blanket.

USGS
September 26, 2018

The goals for this website are to catalog completed geologic maps and to help track the progress of currently funded maps. If you would like to propose for a mapping investigation, check the appropriate planetary body in the map index or refer to the various mapping pages (linked under Maps above) to see which geologic maps may have already been published or are currently in progress. 

RPIF Logo
September 24, 2018

The Astrogeology RPIF maintains and distributes a stock of some 60,000 lunar and planetary maps generated since about 1960. The approximately 900 individual maps published since 1961 in the USGS lunar and planetary I-Map/SIM-map series are listed in an Excel spreadsheet (below). Many of these maps are available in hardcopy form at no cost to the requestor. 

I-Map Database (xls) 230 kB

A stretch of the Colorado River in the Grand Canyon with rock formations partially covered by clouds. 
January 23, 2017

This web mapping application provides access to many of Grand Canyon Monitoring and Research Center’s most commonly used map layers in support of science efforts occurring throughout the Colorado River corridor.

Digital Elevation Model in the Atchafalaya Basin, LA
April 19, 2016

The 3DEP products and services available through The National Map consist of standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

Filter Total Items: 126
Publication Thumbnail
Year Published: 2004

Ground-water, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona, 2002-03

The N aquifer is the major source of water in the 5,400-square-mile area of Black Mesa in northeastern Arizona. Availability of water is an important issue in this area because of continued industrial and municipal use, a growing population, and precipitation of about 6 to 14 inches per year. The monitoring program in the Black Mesa area has...

Truini, Margot; Thomas, Blakemore E.
Ground-water, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona, 2002-03; 2004; OFR; 2003-503; Truini, Margot; Thomas, Blakemore E.

Publication Thumbnail
Year Published: 2003

Hydrogeology of the D aquifer and movement and ages of ground water determined from geochemical and isotopic analyses, Black Mesa area, northeastern Arizona

The Navajo Nation and the Hopi Tribe in the Black Mesa area depend on ground water from sandstones of the N aquifer for domestic, agricultural, municipal, and industrial needs. They are concerned that pumping of water from the N aquifer will induce leakage from the overlying D aquifer, resulting in the degradation of water quality in the N aquifer...

Truini, Margot; Longsworth, Steve A.
Hydrogeology of the D aquifer and movement and ages of ground water determined from geochemical and isotopic analyses, Black Mesa area, northeastern Arizona; 2003; WRI; 2003-4189; Truini, Margot; Longsworth, Steve A.

Publication Thumbnail
Year Published: 2003

Variations in sand storage measured at monumented cross sections in the Colorado River between Glen Canyon Dam and Lava Falls Rapid, northern Arizona, 1992-99

Bed elevations were measured at 131 monumented cross sections in the Colorado River between Glen Canyon Dam and Lava Falls Rapid from June 1992 to September 1999 to provide data on channel sand storage. This report documents the location of the 131 monumented cross sections, dates of measurements for all cross sections, methods of data collection...

Flynn, Marilyn E.; Hornewer, Nancy J.
Variations in sand storage measured at monumented cross sections in the Colorado River between Glen Canyon Dam and Lava Falls Rapid, northern Arizona, 1992-99; 2003; WRI; 2003-4104; Flynn, Marilyn E.; Hornewer, Nancy J.

Publication Thumbnail
Year Published: 2003

A multiscaled model of southwestern willow flycatcher breeding habitat

The southwestern willow flycatcher (SWFL; Empidonax traillii extimus) is an endangered songbird whose habitat has declined dramatically over the last century. Understanding habitat selection patterns and the ability to identify potential breeding areas for the SWFL is crucial to the management and conservation of this species. We developed a...

Hatten, J.R.; Paradzick, C.E.
A multiscaled model of southwestern willow flycatcher breeding habitat; 2003; Article; Journal; Journal of Wildlife Management; Hatten, J. R.; Paradzick, C. E.

Publication Thumbnail
Year Published: 2002

Ground-water, surface-water, and water-chemistry data, Black Mesa Area, northeastern Arizona: 2000-2001, and performance and sensitivity of the 1988 USGS numerical model of the N aquifer

The N aquifer is the major source of water in the 5,400-square-mile area of Black Mesa in northeastern Arizona. Availability of water is an important issue in this area because of continued industrial and municipal use, a growing population, and precipitation of about 6 to 14 inches per year. The monitoring program in Black Mesa has been...

Thomas, Blakemore E.
Ground-water, surface-water, and water-chemistry data, Black Mesa Area, northeastern Arizona: 2000-2001, and performance and sensitivity of the 1988 USGS numerical model of the N aquifer; 2002; WRI; 2002-4211; Thomas, Blakemore E.

Publication Thumbnail
Year Published: 2002

Ground-water, surface-water and water-chemistry data, Black Mesa area, northeastern Arizona: 2001-02

The N aquifer is the major source of water in the 5,400-square-mile area of Black Mesa in northeastern Arizona. Availability of water is an important issue in this area because of continued industrial and municipal use, a growing population, and precipitation of about 6 to 14 inches per year. The monitoring program in the Black Mesa area has...

Thomas, Blakemore E.
Ground-water, surface-water and water-chemistry data, Black Mesa area, northeastern Arizona: 2001-02; 2002; OFR; 2002-485; Thomas, Blakemore E.

Publication Thumbnail
Year Published: 2002

Generalized hydrogeology and ground-water budget for the C Aquifer, Little Colorado River Basin and parts of the Verde and Salt River Basins, Arizona and New Mexico

The C aquifer underlies the Little Colorado River Basin and parts of the Verde and Salt River Basins and is named for the primary water-bearing rock unit of the aquifer, the Coconino Sandstone. The areal extent of this aquifer is more than 27,000 square miles. More than 1,000 well and spring sites were identified in the U.S. Geological Survey...

Hart, Robert J.; Ward, John J.; Bills, Donald J.; Flynn, Marilyn E.
Generalized hydrogeology and ground-water budget for the C Aquifer, Little Colorado River Basin and parts of the Verde and Salt River Basins, Arizona and New Mexico; 2002; WRI; 2002-4026; Hart, Robert J.; Ward, John J.; Bills, Donald J.; Flynn, Marilyn E.

Publication Thumbnail
Year Published: 2002

Hydrologic conditions in the Bill Williams River National Wildlife Refuge and Planet Valley, Arizona, 2000

During a period of sustained base-flow conditions in the Bill Williams River below Alamo Dam in west central Arizona from March to July 2000, the channel of the river through Planet Valley was dry, and the water table sloped almost due west parallel to the main slope of the flood plain. Water from the river infiltrated into the channel bottom at...

Wilson, Richard P.; Owen-Joyce, Sandra J.
Hydrologic conditions in the Bill Williams River National Wildlife Refuge and Planet Valley, Arizona, 2000; 2002; WRI; 2002-4214; Wilson, Richard P.; Owen-Joyce, Sandra J.

Publication Thumbnail
Year Published: 2001

Statistical summary of selected physical, chemical, and toxicity characteristics and estimates of annual constituent loads in urban stormwater, Maricopa County, Arizona

Stormwater and streamflow in Maricopa County were monitored to (1) describe the physical, chemical, and toxicity characteristics of stormwater from areas having different land uses, (2) describe the physical, chemical, and toxicity characteristics of streamflow from areas that receive urban stormwater, and (3) estimate constituent loads in...

Fossum, Kenneth D.; O'Day, Christie M.; Wilson, Barbara J.; Monical, Jim E.
Statistical summary of selected physical, chemical, and toxicity characteristics and estimates of annual constituent loads in urban stormwater, Maricopa County, Arizona; 2001; WRI; 2001-4088; Fossum, Kenneth D.; O'Day, Christie M.; Wilson, Barbara J.; Monical, Jim E.

Publication Thumbnail
Year Published: 2000

Ground-water quality in the upper Santa Cruz Basin, Arizona, 1998

Fifty-eight ground-water samples were collected and analyzed in 1998 by the U.S. Geological Survey and the Arizona Department of Environmental Quality to assess ground-water quality and to identify factors affecting ground-water quality in the Upper Santa Cruz Basin. In addition, pre-existing groundwater quality data for six wells were analyzed to...

Coes, Alissa; Gellenbeck, Dorinda J.; Towne, Douglas C.; Freark, Maureen C.
Ground-water quality in the upper Santa Cruz Basin, Arizona, 1998; 2000; WRI; 2000-4117; Coes, Alissa; Gellenbeck, Dorinda J.; Towne, Douglas C.; Freark, Maureen C.

Publication Thumbnail
Year Published: 2000

Ground-water, surface-water, and water-chemistry data, Black Mesa area, Northeastern Arizona: 1999

The N aquifer is the major source of water in the 5,400-square-mile area of Black Mesa in northeastern Arizona. Availability of water is an important issue in this area because of continued industrial and municipal use, a growing population, and a precipitation of only about 6 to 12 inches per year. The monitoring program in Black Mesa has been...

Thomas, Blakemore E.; Truini, Margot
Ground-water, surface-water, and water-chemistry data, Black Mesa area, Northeastern Arizona: 1999; 2000; OFR; 2000-453; Thomas, Blakemore E.; Truini, Margot

Publication Thumbnail
Year Published: 2000

Ground-water, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona: 1998

The Black Mesa monitoring program is designed to document long-term effects of ground-water pumping from the N aquifer by industrial and municipal users. The N aquifer is the major source of water in the 5,400-square-mile Black Mesa area, and the ground water occurs under confined and unconfined conditions. Monitoring activities include continuous...

Truini, Margot; Baum, Bradley M.; Littin, Gregory R.; Shingoitewa-Honanie, Gayl
Ground-water, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona: 1998; 2000; OFR; 2000-66; Truini, Margot; Baum, Bradley M.; Littin, Gregory R.; Shingoitewa-Honanie, Gayl

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USGS hydrographer collecting a suspended-sediment water sample from the highly turbid Little Colorado River in the Grand Canyon.
February 26, 2018

USGS hydrographer collecting a suspended-sediment water sample.

Suspended-Sediment Sampling and Turbidity

Here, a U.S. Geological Survey (USGS) hydrographer is collecting a suspended-sediment water sample from the Little Colorado River, a kilometer upstream from the Colorado River, Grand Canyon, Arizona, USA. To gain knowledge of the

...
February 22, 2018

Ungulates in a Warmer Climate

Researchers supported by NCCWSC are working to improve managers’ understanding of ungulates’ response to a warmer climate. For example, when surface water is unavailable, the water content within ungulates’ food provides them with their main source of water, and they must make resourceful foraging decisions to meet their water needs. Scientists researching desert bighorn

...
Unmanned Aerial System prior to takeoff
December 31, 2017

Unmanned Aerial System

This small unmanned aerial system with digital camera has been used to create digital elevation models to answer questions about erosion, bridge scour, and other hydraulics analyses. 

Unmanned Aerial System takes images in Arizona
December 31, 2017

Unmanned Aerial System in Flight

Small Unmanned Aerial System (UAS) collecting digital photos to create digital elevation models. UAS are an increasingly important tool for monitoring, assessing, and conducting targeted scientific research for the nation.

Lake Powell
December 31, 2017

Lake Powell

The USGS Utah Water Science Center and the Woods Hole Coastal and Marine Science Center conducted a collaborative geophysical research effort within Lake Powell, UT-AZ to map the bathymetry of the lake and characterize shallow sediment deposition near the mouths of the San Juan and Colorado Rivers.

A discussion group looks at notes on a large easel pad
December 31, 2017

Collaborative Discussion

The USGS RAMPS program hosts workshops where land managers from federal, state, and local agencies, practitioners, and NGO's can come together to discuss challenges and develop creative solutions. Here,

...
Digital elevation model created by an Unmanned Aerial System
December 31, 2017

Digital Elevation Model Created by an Unmanned Aerial System

This digital elevation model was created using structure from motion software mounted to an Unmanned Aerial System (UAS) to analyze bridge scour. Studies using UAS have included stream temperature analyses, bird and mammal surveys, coastal change mapping, sandbar habitat surveys, fluvial erosion rates, microclimate mapping, air quality analysis, plant stress assessment,

...
Close-up of dried, cracked soil with small plants trying to survive in this soil.
December 31, 2017

Dry, cracked soil (RAMPS)

Rangelands of the desert Southwest can be in a degraded condition and lacking perennial vegetation, which can lead to exposed soil and erosion. RAMPS is working to mitigate degradation by increasing 

...
December 17, 2017

USGS Astrogeology Geologic Map GIS Template

Review of all elements included in the GIS template provided to NASA-funded mappers producing USGS SIM-series planetary geologic maps.

November 30, 2017

Tour of the Planetary Geologic Mapping Python Toolbox

A tour of the Planetary Geologic Mapping Python toolbox, a suite of GIS tools from the Astrogeology Science Center.
 

Sonoran desert scene, complete with prickly pear, saguaro, and cholla cactus species.
October 31, 2017

Sonoran Desert Cactus Guild

The iconic Sonoran Desert is home to many species of cactus, vascular plants, and wildlife, including the giant saguaro, cholla, and prickley pear cacti seen here. Plants and animals have adapted to living in such a harsh dry environment. For example, the plants in this photo have grown up in the shade of one another, and survived due to protection from the hot sun. The

...
October 20, 2017

Introduction to GIS Data for ArcMap 10.1 and Higher

An introduction to GIS data using ArcMap 10.1 and higher; intended for planetary geologic mappers. 
 

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Full-Circle Vista from Naukluft Plateau on Mars
July 3, 2017

Billions of dollars and a decade worth of research are on the line in the instant that a spacecraft touches down on Mars. When deciding where to land on the planet’s rocky surface, it is essential to analyze potential landing sites and their surface characteristics.

An extremely rare Mojave River western pond turtle was recently observed in the Mojave Desert.
May 23, 2017

An extremely rare Mojave River western pond turtle was recently observed by U.S. Geological Survey scientists and staff from The Living Desert Zoo and Gardens in the Mojave Desert. Turtles of this population have rarely been seen since the late 1990s.

Three-dimensional view of the west Ceti Mensa area looking toward the southeast.
May 12, 2017

A new set of high-resolution geologic maps reveal complex geologic processes that suggest a dynamic, wet environment once existed on early Mars, according to the U.S. Geological Survey.

A radio-tracked adult desert tortoise basks in the sun among the wind turbines at a wind energy facility
May 3, 2017

How a wind energy facility is designed can influence the behavior of animal predators and their prey, according to a recent study published in The Journal of Wildlife Management by researchers at the University of California, Davis, and the U.S. Geological Survey.

Image shows a map of U.S. states colored based on the value of their mineral industry
April 14, 2017

In 2016, these five states led the pack in mineral production, accounting for about one third of the total mineral production value for the entire country.

Santa Cruz River
March 27, 2017

Desert communities throughout the Southwest are putting water availability at the top of their municipal agendas.

View from Canyonlands Research Center
March 15, 2017

Arid and semiarid ecosystems are expected to experience significant changes in temperature and precipitation patterns, which may affect soil organisms in ways that cause surfaces to become lighter in color and thus reflect more sunlight, according to a new U.S. Geological Survey study.

Lake Mead
March 15, 2017

The Colorado River system provides about 35 million Americans with a portion of their water supply. It irrigates 5½ million acres of land in the West and provides water to tribes, parks, and wildlife. The system serves parts of seven States and Mexico—but reservoir levels have crept lower over the past several years, sparking questions about how much water remains and who will have access.

Photo of Pigeon Canyon just before it merges with Snake Gulch in northern Arizona. 
January 24, 2017

Uranium levels in Pigeon Spring, just north of the Grand Canyon, are likely due to a natural source of uranium and not related to the nearby former Pigeon Mine, according to a recent study by the U.S. Geological Survey.

Photo of a young girl drinking water, which likely originated from groundwater sources. 
January 19, 2017

A regional assessment of untreated groundwater in the Basin and Range basin-fill aquifers, which include parts of Nevada, California, Arizona, Utah and adjacent states, is now available from the U.S. Geological Survey.

Photo of scientists conducting water chemistry tests for the San Pedro River aquifer. 
December 20, 2016

For the first time, information about the San Pedro River Aquifer is now available from both the U.S. and Mexico in a new, collaborative report issued from the International Boundary and Water Commission, the Mexican National Water Commission, the U.S. Geological Survey and the Universities of Arizona and Sonora.

Laura Norman, USGS scientist, presenting
December 17, 2016

There was a full house at Cady Hall on Saturday, Dec. 17 to hear USGS scientist Laura Norman, PhD, talk about our water, the liquid gold of the Patagonia watershed. Her presentation was sponsored by the Friends of Sonoita Creek (FOS).

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