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: 387
Date published: August 2, 2007
Status: Completed

Prediction of suspended-sediment transport and identification of sediment source areas in the Fountain Creek watershed

 The Fountain Creek drainage network currently is in a precarious geomorphic situation. This situation arises because:

  1. the Palmer Divide and the Rampart Range have the potential to cause very high orographically induced rainfall rates
  2. east of the foothills, streams within the watershed flow through valley bottoms filled with easily eroded alluvial sediments
  3. there
  4. ...
Date published: June 25, 2007
Status: Completed

Eagle Creek Basin Water Budget and Effects of Groundwater Pumping on Streamflow in North Fork Eagle Creek, Lincoln County, New Mexico

North Fork Eagle Creek is located in the Sacramento Mountains of south-central New Mexico. Urban and resort development have placed increasing demands on surface- and ground-water resources of the area. The Village of Ruidoso obtains 60 to 70 percent of its water supply from the Eagle Creek basin, including 4 wells (the North Fork wells) on U.S. Department of Agriculture, Forest Service land....

Date published: June 20, 2007
Status: Active

Chemical Modeling of Acid Waters Questa Baseline and Pre-Mining Ground-Water Quality Investigation, Red River Valley Basin, New Mexico

The US Geological Survey and the New Mexico Environment Department entered into a Joint Powers Agreement as of April 30, 2001 to execute an investigation of baseline and pre-mining ground-water quality in the Red River Basin, New Mexico. The main objective is to infer the pre-mining ground-water quality at the Questa Molycorp mine site. This study was formulated because New Mexico law states...

Contacts: Nathan C Myers
Date published: May 17, 2007
Status: Active

Comprehensive Water-Quality Study for the Arkansas River Basin, Colorado

Changes in land and water use associated with population growth and agricultural practices within the Arkansas River Basin are likely to affect water-quality on a local and, possibly, a basin-wide scale. To manage the limited water resources in the basin most effectively it is important to understand the processes that affect water quality within the basin and how future changes in land and...

Date published: March 7, 2007
Status: Completed

Chemical Modeling of Consequences of Surface-Water Delivery Through Existing City of Albuquerque Infrastructure

The City of Albuquerque has historically obtained all of its municipal-supply water from production wells completed in sediment of the Santa Fe Group aquifer system. Like several communities in the Rio Grande Valley and various parts of the arid Southwest, Albuquerque has evaluated the use of surface water as a means to improve sustainability of its municipal water supply. The City currently...

Date published: December 15, 2006
Status: Completed

Aquatic communities and associated water chemistry in the St. Vrain River near the City of Longmont wastewater-treatment plant

The St. Vrain River watershed in northeastern Colorado has experienced rapid urban growth over the last two decades. Population growth has led to increased volumes being treated at wastewater-treatment plants (WWTPs) in the basin. In the last two decades, in-stream restoration efforts and new treatment technologies have been implemented by the City of Longmont, with the goal of improving water...

Contacts: Nancy J Bauch
Date published: November 21, 2006
Status: Completed

RCMAP - Lake Fork at Gateview, Colorado

The U.S. Geological Survey was engaged in a program to monitor and assess the long-term geomorphic behavior of selected river and stream reaches that previously had undergone some physical modification.  These modifications included natural channel adjustments to floods as well as intentional channel reconfigurations to alter the function or appearance of a river reach.

Land use in the...

Contacts: Cory A Williams
Date published: June 6, 2006
Status: Active

Floods Analysis

Accurate estimations of flood discharges at bridge or culvert sites is required to provide cost-effective design of that structure. Streamflow-gaging stations, for which flood data are available, are usually located in major perennial drainage basins that are not representative of sites where common bridge and culvert designs are needed.

In 1942, the USGS, in cooperation with the New...

Contacts: Anne C Tillery
Date published: June 5, 2006
Status: Completed

Rio Grande Travel Times

The City of Albuquerque will begin accepting delivery of imported San Juan-Chama water to supplement present municipal water supplies as part of the City's Drinking Water Project (DWP). The City's San Juan-Chama water will be diverted from the Rio Grande near Alameda Bridge in Albuquerque, transported to a treatment facility, and eventually distributed to customers.

Water in the Rio...

Contacts: For contact information, please reach out to:
Date published: May 14, 2006
Status: Completed

Analysis of the Magnitude and Frequency of Peak Discharge in the Navajo Nation and Surrounding Region, Arizona, Utah, Colorado, and New Mexico

Estimates of the magnitude and frequency of peak discharges on unregulated streams at gaging stations or ungaged stream sites in the Navajo Nation in Arizona, Utah, Colorado, and New Mexico are necessary for flood hazard mapping.

Contacts: Anne C Tillery
Date published: October 1, 2005
Status: Completed

Numerical simulation of the cumulative effects of land-use change and aggregate mines on ground-water flow and wetlands along the South Platte River, Brighton to Fort Lupton, Colorado

The South Platte River valley between the City of Brighton in Adams County and the town of Fort Lupton in Weld County, Colorado, contains many wetland areas that provide habitat for wildlife in the Front Range Urban Corridor. The extent of aggregate mining along this reach of the South Platte River valley continues to increase as the demand for aggregate grows in response to urban development...

Contacts: Suzanne Paschke
Date published: June 5, 2005
Status: Completed

Documentation of slug and shut-in test data for wells H-1, H-2A, H-2B, H-2C, and H-3 at the Waste Isolation Pilot Plant

The U.S. Geological Survey (USGS) has collected, documented, and published an extensive amount of hydrogeologic data collected from and near the Waste Isolation Pilot Plant (WIPP) site in southeastern New Mexico. The objective of the proposed work is to document and publish the data that was used to estimate values of transmissivity and storage coefficients for water-bearing zones open to...

Contacts: For contact information, please reach out to:

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: 5,264
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Year Published: 2020

Holocene relative sea-level change along the tectonically active Chilean coast

We present a comprehensive relative sea-level (RSL) database for north, central, and south-central Chile (18.5°S – 43.6°S) using a consistent, systematic, and internationally comparable approach. Despite its latitudinal extent, this coastline has received little rigorous or systematic attention and details of its RSL history remain largely...

Garrett, Ed; Melnick, Daniel; Dura, Tina; Cisternas, Marco; Ely, Lisa; Wesson, Robert L.; Jara-Munoz, Julius; Whitehouse, Pippa L

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Year Published: 2020

Near-field remote sensing of surface velocity and river discharge using radars and the probability concept at 10 USGS streamgages

Near-field remote sensing of surface velocity and river discharge (discharge) were measured using coherent, continuous wave Doppler and pulsed radars. Traditional streamgaging requires sensors be deployed in the water column; however, near-field remote sensing has the potential to transform streamgaging operations through non-contact methods in...

Fulton, John; Mason, Christopher Allen; Eggleston, Jack R.; Nicotra, Matthew J.; Chiu, C.-L.; Henneberg, Mark F.; Best, Heather; Cederberg, Jay; Holnbeck, Stephen R.; Lotspeich, R. Russell; Laveau, Christopher; Moramarco, Tommaso; Jones, Mark E.; Gourley, Jonathan J; Wasielewski, Danny

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Year Published: 2020

The Landsat Burned Area algorithm and products for the conterminous United States

Complete and accurate burned area map data are needed to document spatial and temporal patterns of fires, to quantify their drivers, and to assess the impacts on human and natural systems. In this study, we developed the Landsat Burned Area (BA) algorithm, an update from the Landsat Burned Area Essential Climate Variable (BAECV) algorithm. Here,...

Hawbaker, Todd J.; Vanderhoof, Melanie K.; Schmidt, Gail L.; Beal, Yen-Ju G.; Picotte, Joshua J.; Takacs, Joshua; Falgout, Jeff T.; Dwyer, John L.

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Year Published: 2020

A critical assessment of human-impact indices based on anthropogenic pollen indicators

Anthropogenic pollen indicators in pollen records are an established tool for reconstructing the history of human impacts on vegetation and landscapes. They are also used to disentangle the influence of human activities and climatic variability on ecosystems. The comprehensive anthropogenic pollen-indicator approach developed by Behre (1981) has...

Deza-Araujo, Mara; Morales-Molino, César; Tinner, Willy; Henne, Paul D.; Heitz, Caroline; Pezzatti, Gianni B; Hafner, Albert; Conedera, Marco

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Year Published: 2020

Geologic map of the Homestake Reservoir 7.5′ quadrangle, Lake, Pitkin, and Eagle Counties, Colorado

The Homestake Reservoir 7.5' quadrangle lies at the northwestern end of the Upper Arkansas Valley, and headwaters of the Arkansas River, and the Roaring Fork, Fryingpan, and Eagle Rivers of the Colorado River system.  The quadrangle lies within tectonic provinces of the 1.4 giga-annum (Ga) Picuris orogeny and includes the late Paleozoic...

Ruleman, Chester A.; Michael G. Frothingham; Brandt, Theodore R.; Shaw, Colin A.; Caffee, Marc W.; Goehring, Brent M.; Brugger, Keith A.
Ruleman, C.A., Frothingham, M.G., Brandt, T.R., Shaw, C.A., Caffee, M.W., Brugger, K.A., and Goehring, B.M., 2020, Geologic map of the Homestake Reservoir 7.5' quadrangle, Lake, Pitkin, and Eagle Counties, Colorado: U.S. Geological Survey Scientific Investigations Map 3451, scale 1:24,000, https://doi.org/10.3133/sim3451.

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Year Published: 2020

Science plan for improving three-dimensional seismic velocity models in the San Francisco Bay region, 2019–24

This five-year science plan outlines short-term and long-term goals for improving three-dimensional seismic velocity models in the greater San Francisco Bay region as well as how to foster a community effort in reaching those goals. The short-term goals focus on improving the current U.S. Geological Survey San Francisco Bay region geologic and...

Aagaard, Brad T.; Graymer, Russell W.; Thurber, Clifford H.; Rodgers, Arthur J.; Taira, Taka'aki; Catchings, Rufus D.; Goulet, Christine A.; Plesch, Andreas
Aagaard, B.T., Graymer, R.W., Thurber, C.H., Rodgers, A.J., Taira, T., Catchings, R.D., Goulet, C.A., and Plesch, A., 2020, Science plan for improving three-dimensional seismic velocity models in the San Francisco Bay region, 2019–24: U.S. Geological Survey Open-File Report 2020–1019, 37 p., https://doi.org/10.3133/ofr20201019.

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Year Published: 2020

Assessment of continuous oil and gas resources in Lower Silurian Shales of the Arabian Peninsula, 2019

Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 4.6 billion barrels of oil and 561 trillion cubic feet of gas in the Lower Silurian Shale Total Petroleum System of the Arabian Peninsula.

Schenk, Christopher J.; Mercier, Tracey J.; Woodall, Cheryl A.; Tennyson, Marilyn E.; Finn, Thomas M.; Brownfield, Michael E.; Marra, Kristen R.; Le, Phuong A.; Drake, Ronald M.; Kinney, Scott A.
Schenk, C.J., Mercier, T.J., Woodall, C.A., Tennyson, M.E., Finn, T.M., Brownfield, M.E., Marra, K.R., Le, P.A., Drake, R.M., II, and Kinney, S.A., 2020, Assessment of continuous oil and gas resources in lower Silurian shales of the Arabian Peninsula, 2019: U.S. Geological Survey Fact Sheet 2019–3070, 4 p., https://doi.org/10.3133/fs20193070.

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Year Published: 2020

Assessing mercury distribution using isotopic fractionation of mercury processes and sources adjacent and downstream of a legacy mine district in Tuscany, Italy

Mercury (Hg) concentrations and isotopic compositions in a range of sample types collected from the legacy Abbadia San Salvatore Mine (ASSM) area were used to evaluate the distribution of Hg in the region. The district generated more than 100,000 metric tons of Hg releasing extensive amounts of gaseous Hg emissions and producing large amounts of...

Pribil, Michael; Rimondi, Valentina; Costagliola, Pilario; Lattanzi, Pierfranco; Rutherford, Danny

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Year Published: 2020

Monazite and cassiterite Usingle bondPb dating of the Abu Dabbab rare-metal granite, Egypt: Late Cryogenian metalliferous granite magmatism in the Arabian-Nubian Shield

The Abu Dabbab rare-metal granite in the Eastern Desert of Egypt is a highly-evolved alkali-feldspar granite with transitional magmatic-hydrothermal features. Extreme geochemical fractionation and the associated significant TaSn resource make the Abu Dabbab intrusion an important feature in the metallogenic evolution of the Arabian-Nubian Shield....

Lehmann, Bernd; Zoheir, Basem; Neymark, Leonid A.; Zeh, Armin; Emam, Ashraf; Radwan, Abdelhady; Zhang, Rongqing; Moscati, Richard J.

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Year Published: 2020

Practical limitations of Earthquake Early Warning

Earthquake Early Earning (EEW) entails detection of initial earthquake shaking and rapid estimation and notification to users prior to imminent, stronger shaking. EEW is coming to the U.S. West Coast. But what are the technical and social challenges to delivering actionable information on earthquake shaking before it arrives? Although there will...

Wald, David J.

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Year Published: 2020

USGS “Did You Feel It?” — Science and lessons from twenty years of citizen science-based macroseismology

The U.S. Geological Survey (USGS) “Did You Feel It?” (DYFI) system is an automatic method for rapidly collecting macroseismic intensity data from Internet users’ shaking and damage reports and for generating intensity maps immediately following felt earthquakes. DYFI has been in operation for nearly two decades (1999-2019) in the United States,...

Quitoriano, Vince; Wald, David J.

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Year Published: 2020

Assessment of tight-gas resources in the Grand Erg/Ahnet Province of Algeria, 2019

Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 30.5 trillion cubic feet of tight gas in the Grand Erg/Ahnet Province of Algeria.

Brownfield, Michael E.; Schenk, Christopher J.; Mercier, Tracey J.; Tennyson, Marilyn E.; Woodall, Cheryl A.; Finn, Thomas M.; Le, Phuong A.; Pitman, Janet K.; Drake, Ronald M.; Gaswirth, Stephanie B.; Leathers-Miller, Heidi M.
Brownfield, M.E., Schenk, C.J., Mercier, T.J., Tennyson, M.E., Woodall, C.A., Finn, T.M., Le, P.A., Pitman, J.K., Drake, R.M., II, Gaswirth, S.B., and Leathers-Miller, H.M., 2020, Assessment of tight-gas resources in the Grand Erg/Ahnet Province of Algeria, 2019: U.S. Geological Survey Fact Sheet 2020–3003, 2 p., https://doi.org/10.3133/fs20203003.

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: 523
Flames from a managed wildfire consume surface fuels, New Mexico
August 2, 2014

Flames from a managed wildfire consume surface fuels, New Mexico

Flames from a managed wildfire consume surface fuels, New Mexico

A convective smoke plume from a managed wildfire rises above Ponderosa pine trees, New Mexico
August 2, 2014

A convective smoke plume from a managed wildfire

A convective smoke plume from a managed wildfire rises above Ponderosa pine trees, New Mexico

August 1, 2014

Debris Flow Monitoring at Chalk Cliffs, CO (2014)

The USGS and its cooperators have installed debris-flow monitoring equipment in the largest drainage basin at Chalk Cliffs, CO. Data collection at this site supports research on the hydrologic factors that control debris-flow initiation, entrainment, and flow dynamics.

This debris flow took place August 1, 2014. The video includes two different views of an

Little Powder River above Dry Week, near Weston, Wyoming
July 14, 2014

Little Powder River above Dry Week, near Weston, Wyoming

Little Powder River above Dry Week, near Weston, Wyoming

Flowing well used for stock water, Green River Basin
July 10, 2014

Flowing well used for stock water, Green River Basin

Flowing well used for stock water, Green River Basin

Wind turbines in Wyoming.
June 10, 2014

Wind turbines in Wyoming.

Wind turbines working in Wyoming. 

Looking upstream from bridge, Tongue river, Monarch
June 4, 2014

Looking upstream from bridge, Tongue river, Monarch

Looking upstream from bridge, Tongue river, Monarch

truck and camper trailer Onaqui SageStep field site
April 28, 2014

Onaqui SageStep field site, field camp

Field site truck and trailer at the Onaqui SageStep field site, field camp

A landscape view of the drylands of southern Utah
April 28, 2014

Drylands of Southern Utah

USGS Image Drylands of Southern Utah - April 28, 2014

Ice jam, Powder River near Arvada (06317000)
March 8, 2014

Ice jam, Powder River near Arvada (06317000)

Ice jam, Powder River near Arvada (06317000)

ADCP measurement on Green River at Ouray, Utah from kayack.
February 28, 2014

Green River at Ouray, Utah

ADCP measurement from kayack on Green River at Ouray, Utah.

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: 359
USGS
April 16, 1998

A 5-year study of water quality in the Rio Grande Valley, from its headwaters in Colorado to near El Paso, Texas, has been completed by the U.S. Geological Survey (USGS). The study focused on ground water in the flood plain of the Rio Grande and surface water in the Rio Grande and selected tributaries.

USGS
April 16, 1998

Although agriculture and urban activities have substantially affected water quality in several areas of the South Platte River Basin, concentrations of pesticides and volatile organic chemicals (VOCs), such as MTBE, are generally below levels of concern for human health, according to the results of a 5-year investigation of water quality by the U.S. Geological Survey.

USGS
April 14, 1998

An air temperature threshold is a powerful indicator for anticipatingpotentially hazardous landslides during the spring snowmelt season,according to the results of a recent study by the U.S. Geological Survey.

USGS
March 17, 1998

The potential for earthquakes in many parts of the United States, a review of the more than 10,000 earthquakes that have occurred near Mammoth Lakes, Calif., during the past year, and updates on the monitoring of earthquakes, mine explosions and earthquake-induced landslides are part of 32 presentations by scientists from the U.S. Geological Survey at the annual meeting of the Seismological...

USGS
February 13, 1998

From Seafloor Mapping to Hammer Awards and AAAS Fellowships........

USGS
October 16, 1997

The asteroid impact that occurred 65 million years ago comes to life on the computer screen, Tuesday, Oct. 21, as a research cartographer with the U.S. Geological Survey demonstrates his latest HyperCard animation at the annual meeting of the Geological Society of America (GSA) in Salt Lake City.

USGS
October 16, 1997

When Henry J. Moore was growing up on Third Avenue during the 1930s, he says he didn’t pay much attention to the comic-book space dust being kickedup by Buck Rogers and Flash Gordon. Twenty years later, however, Moore’s interest in the dust and landforms of Planet Earth set him on a course that would eventually land in the dust on Mars; in a matter of speaking.

USGS
September 26, 1997

High concentrations of dissolved salts in the lower Colorado River basin have been linked to regional geologic collapse near Glenwood Springs, Colo., according to scientists from the U.S. Geological Survey and the Colorado Geological Survey.

USGS
June 9, 1997

The 1996/97 austral summer season marked the beginning of the newest deep ice core drilling project sponsored by the National Science Foundation, Office of Polar Programs.

USGS
June 2, 1997

The U. S. Geological Survey has released Open-File Report 97-59 entitled: Geology and Structure of the Pine River, Florida River, Carbon Junction, and Basin Creek Gas Seeps, La Plata County, Colorado.

USGS
November 21, 1996

The gasoline additive MTBE (methyl tert-butyl ether) was detected in some urban stormwater samples collected in 16 cities and metropolitan areas by the U.S. Geological Survey, but all detections of MTBE were less than the lower limit of the U.S. Environmental Protection Agency’s draft lifetime health advisory for drinking water.

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.