Unified Interior Regions

Region 7: Upper Colorado Basin

Map of Region 7: Upper Colorado Basin

Map of Region 7:  Upper Colorado Basin

Map Showing USGS/DOI Unified Region 7 and parts of adjoining Regions

Regions L2 Landing Page Tabs

USGS Science Centers in Region 7-Upper Colorado Basin conduct a large number of cooperative and collaborative projects with other agencies and partners. A sampling of those projects are shown below on this web page.

Filter Total Items: 388
Date published: May 29, 2016
Status: Completed

National Water-Quality Assessment Program (NAWQA) Rio Grande Valley Study

The New Mexico Water Science Center (NMWSC) has historically conducted NAWQA data collection of groundwater and surface water-data within the former Rio Grande Valley (RIOG) study unit, which covers about 45,700 square miles in Colorado, New Mexico, and Texas.

Date published: May 25, 2016
Status: Completed

Cannon Air Force Base: Seasonal Potentiometric Surfaces and Groundwater-Level Trends

Declining water levels and a history of high nitrate concentrations in groundwater near and on Cannon Air Force Base (CAFB) necessitated a more detailed assessment of groundwater flow directions than has been done in the past. Previous potentiometric-surface maps were sufficient for showing regional directions of groundwater flow, but more detailed seasonal (summer high-pumping and winter low-...

Contacts: Nathan C Myers
Date published: May 25, 2016
Status: Completed

Reconstruction of an Avalanche: The West Salt Creek Rock Avalanche

Release Date: MAY 25, 2016

The West Salt Creek Rock Avalanche, Colorado, May 25, 2014

Date published: May 23, 2016
Status: Active

Identifying Changes in Background Water-Quality Conditions, Arkansas River and Fountain Creek, near Pueblo, Colorado

Demands for water are projected to increase in the Lower Arkansas River Basin as the population continues to grow. Strategies to meet those demands include continued operation of the Fryingpan-Arkansas Project water, enlargement of Pueblo and Turquoise Reservoirs, and various conservation measures; the overall strategy is defined in the Preferred Storage Options Plan (see the Southeastern...

Date published: May 18, 2016
Status: Active

Salinity Trends in Shallow Groundwater, Rincon and Mesilla Valley, New Mexico

Data from monitoring sites at Rincon Valley and Mesilla Valley.

Contacts: Lauren R Henson
Date published: May 10, 2016
Status: Active

Drilling Replacement Monitoring Wells near the San Juan Coal Mine, NW New Mexico

The San Juan Coal Mine, an underground mine located about 12 miles west-northwest of Farmington, NM, supplies coal to the adjacent San Juan Generating Station. 

Date published: May 6, 2016
Status: Active

Amphibian Research and Monitoring Initiative: Rocky Mountain Region

The Rocky Mountain Region of Amphibian Research and Monitoring Initiative (ARMI) encompasses Montana, Wyoming, Colorado, and New Mexico. Two USGS Science Centers initiate and develop ARMI projects in this region. Investigations at NOROCK are headed by Dr. Blake Hossack. Investigations at the Fort Collins Science Center (FORT), Colorado, are headed by Dr. Erin Muths. The ARMI program is based...

Date published: April 18, 2016
Status: Completed

IGBST Grizzly Bear Food Synthesis Report

How to Cite:  Interagency Grizzly Bear Study Team. 2013. Response of Yellowstone grizzly bears to changes in food resources: a synthesis. Report to the Interagency Grizzly Bear Committee and Yellowstone Ecosystem Subcommittee. Interagency Grizzly Bear Study Team, U.S. Geological Survey, Northern Rocky Mountain Science Center, Bozeman, Montana, USA.

Date published: April 13, 2016
Status: Active

Yellowstone Lake Acoustic Biotelemetry Project Home Page

Fishery biologists and managers are increasingly consumed with the recovery and restoration of native trout and salmon throughout the western United States. These fish historically inhabited a variety of freshwater habitats, but have declined due to habitat degradation, fragmentation and introduction of nonnative species. Introduced fishes constitute a major threat to the persistence of native...

Date published: April 12, 2016
Status: Active

Developing stream temperature networks for the Greater Yellowstone to aid in managing aquatic resources under a changing climate

The topographic diversity and extensive area of protected public land within the Greater Yellowstone demonstrate the importance of this region as a natural resource reserve. Understanding the effects of anticipated changes in climate on aquatic resources and means for managing these resources will ultimately require accurate linkages between empirical data and regional climatic patterns. This...

Date published: April 12, 2016
Status: Active

Evaluating the linkages between regional climate patterns, local climate data, and native Yellowstone cutthroat trout (Oncorhynchus clarkii bouvieri) and non-native brook trout (Salvelinus fontinalis) growth, survival, and life-history expressions.

Beyond large-scale climate models, it is becoming increasingly important to quantify how regional climate patterns link with in situ stream temperatures and hydrologic regimes and concomitantly, fish behavior, growth, and survival. Here, we are using comprehensive mark-recapture techniques to evaluate how changing climatic conditions are likely to influence native westslope cutthroat trout and...

Date published: April 11, 2016
Status: Active

Nonindigenous Aquatic Species (NAS) Program

Welcome to the Nonindigenous Aquatic Species (NAS) information resource for the United States Geological Survey. Located at Gainesville, Florida, this site has been established as a central repository for spatially referenced biogeographic accounts of introduced aquatic species. The program provides scientific reports, online/realtime queries, spatial data sets, distribution maps, and general...

USGS Science Centers in Region 7-Upper Colorado Basin collect a wide variety of natural resource data types including spatial, geologic, hydrologic, and biologic data. Data included in USGS-series publications that are not publically available in USGS databases are published in Data Releases. Tools are USGS products that can be used to analyze those types of data.

Filter Total Items: 279
Date published: April 19, 2016

Elevation Data

The 3DEP products and services available through The National Map consist of lidar point clouds (LPC), 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.

Date published: April 12, 2016

Orthoimagery Data

Orthoimagery data typically are high resolution aerial images that combine the visual attributes of an aerial photograph with the spatial accuracy and reliability of a planimetric map. The National Map offers public domain, 1-meter orthoimagery for the conterminous United States with many urban areas and other locations at 2-foot or finer resolution.

Date published: April 12, 2016

The National Map Small-Scale Collection

The National Map offers a collection of small-scale datasets, most of which are at 1:1,000,000. The National Map publishes two data collections at one million-scale: one for Global Map users and one for National Map users. In terms of vector geometry, the lines, points, and areas in these data collections are identical. The difference is in the attributes assigned to these features.

Date published: March 17, 2016

Volcano Monitoring Data

Many volcanoes in the U.S. are monitored by arrays of several instruments that detect subtle movements within the earth and changes in gas and water chemistry. The Volcano Hazards Program streams this data to its Volcano Observatories and makes it available on volcano-specific websites.

Date published: March 12, 2016

WaterWatch

WaterWatch is a U.S. Geological Survey (USGS) World Wide Web site that displays maps, graphs, and tables describing real-time, recent, and past streamflow conditions for the United States. The real-time information generally is updated on an hourly basis.

Date published: March 4, 2016

Current Alerts for U.S. Volcanoes

Volcano-alert notifications are produced by Volcano Observatory scientists based on analysis of data from monitoring networks, direct observations, and satellite sensors. They are issued for both increasing and decreasing volcanic activity and include text about the nature of the unrest or eruption and about potential or current hazards and likely outcomes.

Date published: January 1, 2016

Total Mercury Concentrations in Fish Muscle from the Colorado River and Bright Angel Creek, AZ, USA (2015)

This dataset contains data on the length, mass, and muscle total mercury concentration of Brown Trout (Salmo trutta) and Rainbow Trout (Oncorhynchus mykiss) collected from the Colorado River in Glen Canyon National Recreation Area (GLCA) and Grand Canyon National Park (GRCA), and Bright Angel Creek in GRCA.

Date published: January 1, 2016

Previous mineral-resource assessment data compilation for the U.S. Geological Survey Sagebrush Mineral-Resource Assessment Project

This data release consists of a compilation of previously published mineral potential maps that were used for the Sagebrush Mineral-Resource Assessment (SaMiRA) project. This information was used as guides for assessing mineral potential assessment of approximately 10 million acres in Idaho, Montana, Nevada, Utah, and Wyoming. Specifically, the compilation was used to identify the d

Date published: July 21, 2014

The Kiowa core, a continuous drill core through the Denver Basin bedrock aquifers at Kiowa, Elbert County, Colorado

The Kiowa core was obtained as a component of the Denver Basin Project, a cooperative research effort to study the evolution of the Denver Basin, Colorado. The Kiowa core provides a virtually continuous stratigraphic record of the Upper Cretaceous and lower Tertiary strata of the Denver Basin. 

Date published: November 23, 2013

Land Treatment Digital Library (LTDL)

The Land Treatment Digital Library (LTDL) was created by the USGS to catalog legacy land treatment information on Bureau of Land Management lands in the western United States. The LTDL can be used by federal managers and scientists for compiling information for data-calls, producing maps, generating reports, and conducting analyses at varying spatial and temporal scales.

Date published: July 24, 2013

Data Entry Module for the Land Treatment Digital Library (LTDL)

This software allows agencies, organizations, and individuals to download an empty, stand-alone Land Treatment Digital Library database to individual or networked computers. Data entered in these databases may be submitted to the USGS for possible inclusion in the online Land Treatment Digital Library (https://ltdl.wr.usgs.gov).

Date published: January 18, 2013

2011 Groundhog Reservoir Bathymetric Contours

The U.S. Geological Survey performed a bathymetric survey of Groundhog Reservoir using a man-operated boat-mounted multibeam echo sounder integrated with a global positioning system (GPS) and a terrestrial real-time kinematic (RTK) GPS in June 2011. 

USGS Science Centers in Region 7-Upper Colorado Basin produce hundreds of USGS-series publications, journal papers, and books each year that are subject to rigorous review by USGS specialists. The publications shown below on this page are related to study areas and staff members of USGS Science Centers in Region 7 compiled from the USGS Publications Warehouse.

Filter Total Items: 5,325
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Year Published: 2020

Spatial variability in seasonal snowpack trends across the Rio Grande headwaters (1984 - 2017)

This study evaluated the spatial variability of trends in simulated snowpack properties across the Rio Grande headwaters of Colorado using the SnowModel snow evolution modeling system. SnowModel simulations were performed using a grid resolution of 100 m and 3-hourly time step over a 34-yr period (1984–2017). Atmospheric forcing was provided by...

Sexstone, Graham A.; Penn, Colin A.; Liston, Glen; Gleason, Kelly; Moeser, C. David; Clow, David W.

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Year Published: 2020

The firn meltwater Retention Model Intercomparison Project (RetMIP): Evaluation of nine firn models at four weather station sites on the Greenland ice sheet

Perennial snow, or firn, covers 80 % of the Greenland ice sheet and has the capacity to retain surface meltwater, influencing the ice sheet mass balance and contribution to sea-level rise. Multilayer firn models are traditionally used to simulate firn processes and estimate meltwater retention. We present, intercompare and evaluate outputs from...

Vandecrux, Baptiste; Mottram, Ruth; Langen, Peter; Fausto, Robert; Olesen, Martin; Stevens, C. Max; Verjans, Vincent; Leeson, Amber; Ligtenberg, Stefan; Kuipers Munneke, Peter; Marchenko, Sergey S.; van Pelt, Ward; Meyer, Colin R.; Simonsen, Sebastian B.; Heilig, Achim; Samimi, Samira; Marshall, Shawn J.; Machguth, Horst; MacFerrin, Michael J.; Niwano, Masashi; Miller, Olivia L.; Voss, Clifford I.; Box, Jason E.

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Year Published: 2020

Assessing uranium and select trace elements associated with breccia pipe uranium deposits in the Colorado River and main tributaries in Grand Canyon, USA

Assessing chemical loading from streams in remote, difficult-to-access watersheds is challenging. The Grand Canyon area in northern Arizona, an international tourist destination and sacred place for many Native Americans, is characterized by broad plateaus divided by canyons as much as two-thousand meters deep and hosts some of the highest-grade...

Tillman, Fred; Anderson, Jessica; Unema, Joel; Chapin, Thomas
Tillman, F.D, Anderson, J.R., Unema, J.A., and Chapin, T.P., 2020, Assessing uranium and select trace elements associated with breccia pipe uranium deposits in the Colorado River and main tributaries in Grand Canyon, USA. PLoS ONE, 15(11): e0241502.

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Year Published: 2020

Wildfire and landscape change

Wildfire is a worldwide phenomenon that is expected to increase in extent and severity in the future, due to fuel accumulations, shifting land management practices, and climate change. It immediately affects the landscape by removing vegetation, depositing ash, influencing water-repellent soil formation, and physically weathering boulders and...

Santi, Paul M.; Rengers, Francis K.

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Year Published: 2020

Wildfire and Earth surface processes

Wildfire is a worldwide phenomenon that is expected to increase in extent and severity in the future, due to fuel accumulations, shifting land management practices, and climate change. It immediately affects the landscape by removing vegetation, depositing ash, influencing water-repellent soil formation, and physically weathering boulders and...

Santi, Paul M; Rengers, Francis K.

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Year Published: 2020

Geochemical assessment of groundwater in the Big Chino subbasin, Arizona, 2011–18

A geochemical characterization of groundwater in the Big Chino subbasin of Arizona was conducted by the U.S. Geological Survey, in cooperation with the City of Prescott, the Town of Prescott Valley, and the Salt River Project, to understand groundwater evolution through the study area and the source of water to springs along the gaining reach of...

Beisner, Kimberly R.; Jones, Casey J. R.
Beisner, K.R., and Jones, C.J.R., 2020, Geochemical assessment of groundwater in the Big Chino subbasin, Arizona, 2011–18: U.S. Geological Survey Scientific Investigations Report 2020–5094, 49 p., https://doi.org/10.3133/sir20205094.

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Year Published: 2020

Hydrologic properties of a highly permeable firn aquifer in the Wilkins Ice Shelf, Antarctica

We present measurements of the density, hydraulic conductivity, and specific discharge of a widespread firn aquifer in Antarctica, within the Wilkins Ice Shelf. At the field site, the aquifer is 16.2 m thick, starting at 13.4 m from the snow surface and transitioning from water‐saturated firn to ice at 29.6 m. Hydraulic conductivity...

Montgomery, Lynn; Miege, C.; MIller, Julie; Wallin, Bruce; Miller, Olivia L.; Scambos, Ted A.; Solomon, D Kip; Forster, Richard; Koenig, Lora

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Year Published: 2020

On the size of the flare associated with the solar proton event in 774 AD

The 774 AD solar proton event (SPE) detected in cosmogenic nuclides had an inferred >1 GV (>430 MeV) fluence estimated to have been ~30–70 times larger than that of the 1956 February 23 ground level event (GLE). The 1956 GLE was itself ~2.5 times larger at >430 MeV than the episode of strong GLE activity from 1989 August–October. We use...

Cliver, E. W.; Hayakawa, H.; Love, Jeffrey J.; Neidig, D. F.

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Year Published: 2020

Estimating the effects of forest structure changes from wildfire on snow water resources under varying meteorological conditions

Modeling forest change effects on snow is critical to resource management. However, many models either do not appropriately model canopy structure or cannot represent fine‐scale changes in structure following a disturbance. We applied a 1 m2 resolution energy budget snowpack model at a forested site in New Mexico, USA, affected by a...

Moeser, C. David; Borxton, Patrick; Harpold, Adrian; Robertson, Andrew J.

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Year Published: 2020

Cenozoic tectonic evolution of the Ecemiş fault zone and adjacent basins, central Anatolia, Turkey during the transition from Arabia - Eurasia collision to escape tectonics

The effects of Arabia-Eurasia collision are recorded in faults, basins, and exhumed metamorphic massifs across eastern and central Anatolia. These faults and basins also preserve evidence of major changes in deformation and associated sedimentary processes along major suture zones including the Inner Tauride suture where it lies along the southern...

Umhoefer, Paul J.; Thompson, Stuart; Lefebre, Come; Cosca, Michael; Teyssier, Christian; Whitney, Donna L.

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Year Published: 2020

Integrated geophysical analysis provides an alternate interpretation of the northern margin of the North American Midcontinent Rift System, Central Lake Superior

The Midcontinent Rift System (MRS) is a 1.1 Ga sequence of voluminous basaltic eruptions and multiple intrusions followed by widespread sedimentation that extends across the Midcontinent and northern Great Lakes region of North America. Previous workers have commonly used seismic-reflection data (Great Lakes International Multidisciplinary Program...

Grauch, V. J.; Anderson, Eric D.; Heller, Samuel J.; Stewart, Esther K.; Woodruff, Laurel G.

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Year Published: 2020

Accounting for land in the United States: Integrating physical land cover, land use, and monetary valuation

Land plays a critical role in both economic and environmental accounting. As an asset, it occupies a unique position at the intersection of the System of National Accounts (SNA), the System of Environmental-Economic Accounting Central Framework (SEEA-CF), and (as a spatial unit) SEEA Experimental Ecosystem Accounting (SEEA-EEA), making land a...

Wentland, Scott A.; Ancona, Zachary H.; Bagstad, Kenneth J.; Boyd, James W.; Hass, Julie L.; Gindelsky, Marina; Moulton, Jeremy G.

Photos and videos described and linked on this webpage come from a wide variety of USGS science activities and presentations performed by USGS Science Center staff members in the Region 7-Upper Colorado Basin.

Filter Total Items: 525
February 23, 2016

Fitting a radio collar

Biologists with IGBST and the National Park Service fit a grizzly bear with a radio collar.  Once a bear is radio collared, biologists can track its movements with telemetry.

February 23, 2016

Telemetry by air

Once a grizzly bear is radio collared, biologists can track its movements with telemetry via airplane.  The IGBST also used the latest telemetry technologies, which allows downloading of GPS data from the radio collar via satellites.

February 23, 2016

Telemetry by foot

Once a grizzly bear is radio collared, biologists can track its movements with telemetry on foot.   

Rio Grande from New Mexico State Road 359 near Mesilla, N. Mex.
February 11, 2016

Rio Grande from New Mexico State Road 359, New Mex.

North-oriented view of the Rio Grande from New Mexico State Road 359 near Mesilla, N. Mex., February 11, 2016 (photograph by Nicholas R. Glaser, U.S. Geological Survey).

SIR 2016–5011

Rio Grande at New Mexico State Road 359 near Mesilla, N. Mex.
February 11, 2016

Rio Grande at New Mex. State Road 359

North-oriented view of the Rio Grande at New Mexico State Road 359 near Mesilla, N. Mex., February 11, 2016 (photograph by Nicholas R. Glaser, U.S. Geological Survey).

SIR 2016–5011

January 29, 2016

Precipitation Runoff Modeling System (PRMS) Summary Modules

Presents descriptions of the USGS Precipitation Runoff Modeling System (PRMS) Summary modules.
 

January 29, 2016

Precipitation Runoff Modeling System (PRMS) Soil Zone Modules

Presents descriptions of the USGS Precipitation Runoff Modeling System (PRMS) Soilzone module.
 

January 29, 2016

Precipitation Runoff Modeling System (PRMS) Streamflow Modules

Presents descriptions of the USGS Precipitation Runoff Modeling System (PRMS) streamflow routing modules.
 

January 29, 2016

Precipitation Runoff Modeling System (PRMS) Cascading Flow Option

Presents descriptions of the USGS Precipitation Runoff Modeling System (PRMS) cascading-flow computation option, which allows for reinfiltration across the land surface, shallow subsurface, and saturated zone
 

Rio Grande near Montaño Bridge
January 24, 2016

Rio Grande, about 1 mile southwest of Montaño Bridge

Upstream view of the Rio Grande from a location about 1 mile southwest of the Montaño Bridge. Photograph was taken January 24, 2016, by Nathan Myers.

SIR 2016–5021

Rio Grande, about 1 mile southwest of Montaño Bridge, SIR 2016–5021
January 24, 2016

Rio Grande, about 1 mile southwest of Montaño Bridge, SIR 2016–5021

Upstream view of the Rio Grande from a location about 1 mile southwest of the Montaño Bridge. Photograph was taken January 24, 2016, by Nathan Myers.

News items shown on this page are highlights of selected studies conducted and publications produced by USGS Science Center staff members in Region 7-Upper Colorado Basin.

Filter Total Items: 363
USGS
April 21, 2008

The Animas River Stakeholders Group was recognized with the Department of the Interior's Cooperative Conservation Award today for significant improvements to water quality and aquatic habitat in Colorado's Animas River watershed.

USGS
April 15, 2008

New USGS research indicates that climate change may impact water supply from the Colorado River basin. This could greatly impact the more than 25 million people, including residents of Los Angeles and Las Vegas, who rely on this source for water and power. 

USGS
April 1, 2008

Spring may be here, but a chilly 1,529-foot cylinder of ice (cut into meter long pieces) will make its way to Denver to be analyzed and provide clues to the last 100,000 years of earth's climate history.   This is a section of what is hoped to be an 11,300-foot column of ice, just over two-miles long.

USGS
March 25, 2008

Researchers with the U.S. Geological Survey (USGS) have evaluated what different geologic, hydrologic, and biologic studies are most effective in cleaning up the watersheds affected by mining in southwest Colorado, and recently published their findings on-line and in print.

USGS
March 18, 2008

Competition for water is becoming more intense as the nation's population continues to grow, increasing the demands for water use in agriculture and power production.

USGS
March 13, 2008

A report published by the U.S. Geological Survey (USGS) contains a regional map and associated database that inventory 121 locations of reported natural asbestos and fibrous amphibole occurrences in the Southwestern United States, including Arizona, Nevada, and Utah.

USGS
October 2, 2007

The U.S. Geological Survey (USGS) has recently released new models for determining the magnitude and frequency of annual peak streamflow for rivers and streams throughout the State of Utah. Using streamflow data collected through water year 2005 and advanced analysis techniques, these new equations are critical for infrastructure project planning, managing resources and public safety.

USGS
September 27, 2007

Study Concludes Current Lab Structure Most Efficient

The U.S. Geological Survey has concluded that its National Water Quality Laboratory (NWQL) in Lakewood, Colo., should continue to be staffed and operated by government employees.

USGS
September 24, 2007

The U.S. Geological Survey (USGS) released a report today describing salinity levels in streams and ground water in parts of Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming. The report concludes that although salinity varies widely throughout the region, levels have generally decreased in many streams during the past two decades.

USGS
July 9, 2007

A report published by the U.S. Geological Survey (USGS) contains a regional map and associated database that inventory 61 locations of reported natural asbestos and fibrous amphibole occurrences in the Rocky Mountain area of the United States, including the states of Colorado, Idaho, Montana, New Mexico, and Wyoming.

USGS
July 9, 2007

The U.S. Geological Survey (USGS) Colorado Water Science Center will conduct a dye-tracing study for Toll Gate Creek in Aurora, Colo., from July 9 to August 5. During this time, non-toxic red dye, rhodamine WT, will be released into the creek and will be monitored as it flows downstream.

USGS
June 25, 2007

Watch history in action as U.S. Geological Survey (USGS) scientists share the secrets of sampling for metals in water with the Indian Tribes from Oklahoma, New Mexico, Louisiana, Texas, and Arkansas U.S. Environmental Protection Agency (USEPA), Region VI.

This page includes links to Social Media accounts (top of page), Science Centers (middle of page), and Regional Office staff members (bottom of page) of the USGS Region 7--Upper Colorado Basin.

USGS Science Centers in Region 7-Upper Colorado Basin conduct a large number of cooperative, co-funded science and monitoring projects with many other Federal, Tribal, State, and local agencies. Please scroll below to see the agencies with which those Science Centers currently have cooperative agreements.

Filter Total Items: 324