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: 386
Date published: January 1, 2005
Status: Completed

Groundwater Resources of the East Mountain Area, Bernalillo, Sandoval, Santa Fe, and Torrance Counties, New Mexico, 2005

The East Mountain area refers to an area east of Albuquerque, New Mexico, on the eastern slopes of the Sandia, Manzanita, and northern Manzano Mountains, and encompasses parts of Bernalillo, Sandoval, Santa Fe, and Torrance Counties.

Contacts: For contact information, please reach out to:
Date published: January 1, 2005
Status: Completed

Middle Rio Grande Basin Study

The U.S. Geological Survey (USGS) Middle Rio Grande Basin Study was a 6-year effort (1995-2001) by the USGS and other agencies to improve the understanding of the hydrology, geology, and land-surface characteristics of the Middle Rio Grande Basin in order to provide the scientific information needed for water-resources management. The Santa Fe Group aquifer system is the main source of...

Date published: August 20, 2004
Status: Completed

Water, Energy, and Biogeochemical Budgets (WEBB): Loch Vale Watershed

Loch Vale is an alpine/subalpine watershed in Rocky Mountain National Park where the U.S. Geological Survey has been conducting research since the 1980s. Our research has focused on the effects of climate change and atmospheric pollutants on water, soil, vegetation, and aquatic life. The alpine/subalpine ecosystem in Loch Vale is sensitive to changes in climate and air pollution. Our long-term...

Date published: August 8, 2004
Status: Completed

South Platte Decision Support System (SPDSS) Well Installation and Aquifer Testing in Shallow Alluvial and Bedrock Aquifers, Adams County, Colorado

The South Platte Decision Support System (SPDSS) is a data base system being developed by the Colorado Water Conservation Board (CWCB) to provide water users, managers, and State of Colorado agencies access to important information related to water management issues affecting the South Platte River system.

Contacts: Suzanne Paschke
Date published: July 2, 2004
Status: Active

Estimating Evaporative Losses Incurred by Conveyance of City of Albuquerque San Juan-Chama Water: Jemez to Albuquerque

The City of Albuquerque is in the process of implementing the Drinking Water Project, which is part of the Albuquerque Water Resources Management Strategy. As part of this strategy, the City will begin accepting delivery of imported San Juan-Chama water to supplement present municipal water supplies. The City of Albuquerque’s annual allotment of imported San Juan-Chama water is 48,200 acre-...

Contacts: For contact information, please reach out to:
Date published: September 30, 2003
Status: Completed

Comparison of the power consumption coefficient (PCC) method to totalizing flow meter (TFM) for estimating ground-water pumpage in the Arkansas River Valley, Colorado

In the mid-1990s, the Colorado Division of Water Resources (CDWR) adopted rules governing measurement of tributary groundwater pumpage for the Arkansas River Basin. The rules allowed groundwater pumpage to be determined using one of two approaches—power conversion coefficient (PCC) or totalizing flowmeters (TFM). In addition, the rules allowed a PCC to be applied to the electrical power usage...

Date published: September 1, 2003
Status: Completed

Hydrogeology and water quality of the shallow unconsolidated-rock aquifers in the Upper Arkansas River Basin from Buena Vista to Salida, Colorado

Population growth near Buena Vista and Salida in Chaffee County has caused concern for the long-term availability and quality of groundwater . Groundwater withdrawals from deep wells that are completed in the basin-fill deposits and designed to supply multiple-dwelling developments could cause drawdowns in water levels of the overlying aquifers. Continued development of groundwater supplies in...

Date published: June 5, 2003
Status: Completed

Development of a Plan of Study on the Hydrogeology and Groundwater Resources of the Salt Basin in New Mexico

The New Mexico part of the Salt Basin covers about 2,400 square miles of the south central part of the State. The principal aquifers in the basin are included in the San Andres Limestone, the Yeso Formation and the Abo Formation all of Permian age. Groundwater recharge to the basin is about 35,078 acre-feet per year with about half of the recharge coming from the watershed feeding the...

Contacts: For contact information, please reach out to:
Date published: May 1, 2003
Status: Completed

Stochastic Modeling of Effects that the Sulphur Gulch Reservoir May Have on Colorado River Water Quality near Grand Junction, Colorado

Sulphur Gulch, a new reservoir proposed to be located about 25 miles east of Grand Junction, Colorado, on a tributary to the Colorado River that drains the Sulphur Gulch watershed between De Beque and Cameo, Colorado. The primary use of the Sulphur Gulch Reservoir would be to provide the Colorado River with up to 5,412.5 acre-feet of late-season water in support of the Endangered Fish Recovery...

Contacts: Kenneth J Leib
Date published: October 1, 2002
Status: Completed

Sources of Metal Loading to the Lake Fork from Turquoise Lake to the confluence with the Arkansas River

The Lake Fork emerges from the outlet of Turquoise Lake at the Sugarloaf dam and flows approximately 5 miles before joining the upper Arkansas River. The first reach of the Lake Fork downstream from the dam is affected by drainage from abandoned mines in the Sugarloaf mining district. Whereas remediation of some of the mine sites has been initiated, Federal Land holders are interested in...

Date published: September 30, 2002
Status: Completed

Arkansas River Water-Quality Data

The Arkansas River Basin drains an area of 24,904 square miles of southeastern Colorado. Like other basins on the Front Range, the Arkansas Basin has experienced growth and is expected to have significant increases in growth in the future. Demands on the limited water resources also will increase as changes in water storage, water releases, and/or transfer of waters within or outside of the...

Date published: September 1, 2002
Status: Completed

Water-Quality Assessment of Wolford Mountain Reservoir on Muddy Creek near Kremmling, Colorado

In March 1985 the U.S. Geological Survey (USGS), in cooperation with the Colorado River Water Conservation District (CRWCD), began a monitoring program on Muddy Creek in anticipation of the construction of a water storage project. A site upstream of the proposed reservoir (Muddy Creek above Antelope Creek, 09041090), and a downstream site (Muddy Creek at Kremmling, 09041500) were chosen 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

How processing methodologies can distort and bias power spectral density estimates of seismic background noise

Power spectral density (PSD) estimates are widely used in seismological studies to characterize background noise conditions, assess instrument performance, and study quasi‐stationary signals that are difficult to observe in the time domain. However, these studies often utilize different processing techniques, each of which can inherently bias the...

Anthony, Robert E.; Ringler, Adam T.; Wilson, David C.; Bahavar, Manochehr; Koper, Keith D.

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Year Published: 2020

Testing ecosystem accounting in the United States: A case study for the Southeast

Ecosystem accounts, as formalized by the System of Environmental-Economic Accounting Experimental Ecosystem Accounts (SEEA EEA), have been compiled in a number of countries, yet there have been few attempts to develop them for the U.S. We explore the potential for U.S. ecosystem accounting by compiling ecosystem extent, condition, and ecosystem...

Warnell, Katie; Russell, Marc J.; Rhodes, Charles; Bagstad, Kenneth J.; Olander, Lydia P; Nowak, David J.; Poudel, Rajendra; Glynn, Pierre D.; Hass, Julie L.; Hiribayashi, Satoshi; Ingram, Jane Carter; Matuszak, John; Oleson, Kirsten L. L.; Posner, Stephen M.; Villa, Ferdinando

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Year Published: 2020

Assessing geohazards to the Denali National Park road with geologic mapping

Denali National Park (DENA) is home to iconic and breathtaking landscapes surrounding the tallest mountain range in North America, the Alaska Range. The park, which covers 6 million acres, is a major draw for tourism and recreation, making it an important economic engine for central Alaska. However, the geologic forces that created the beautiful,...

Hudson, Adam M.; Ruleman, Chester A.; Capps, Denny M
Hudson, A.M., Ruleman, C.A., Capps, D.M., 2020, Assessing geohazards to the Denali National Park Road with geologic mapping: U.S. Geological Survey Fact Sheet 2020–3016, 2 p., https://doi.org/10.3133/fs20203016.

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Year Published: 2020

Depth-dependent soil mixing persists across climate zones

Soil mixing over long (>102 y) timescales enhances nutrient fluxes that support soil ecology, contributes to dispersion of sediment and contaminated material, and modulates fluxes of carbon through Earth’s largest terrestrial carbon reservoir. Despite its foundational importance, we lack robust understanding of the rates and patterns of...

Gray, Harrison J.; Keen-Zebert, Amanda; Furbish, David; Tucker, Gregory E.; Mahan, Shannon A.

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Year Published: 2020

Runoff-initiated post-fire debris flow Western Cascades, Oregon

Wildfires dramatically alter the hydraulics and root reinforcement of soil on forested hillslopes, which can promote the generation of debris flows. In the Pacific Northwest, post-fire shallow landsliding has been well documented and studied, but the potential role of runoff-initiated debris flows is not well understood and only one previous to...

Wall, Sara; Roering, J.J.; Rengers, Francis K.

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Year Published: 2020

Learning from real-world experience to understand renewable energy impacts to wildlife

The project team sought to use real-world data to understand adverse effects to wildlife of renewable energy production that is critical to meeting California’s climate and clean energy goals. The project had three main components. First, a systematic literature review studied 20 peer-reviewed publications and 612 reports from other nonreviewed...

Conkling, Tara J; Vander Zanden, Hannah B.; Poessel, Sharon; Loss, Scott R.; Allison, Taber D; Diffendorfer, James E.; Duerr, Adam E.; Nelson, David M.; Yee, Julie L; Katzner, Todd E.

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Year Published: 2020

NGWA Groundwater Modeling Advisory Panel Survey on the Use of Uncertainty Analysis in Groundwater Modeling

This white paper provides the results of a survey by members of the NGWA Groundwater Modeling Advisory Panel to assess the use of uncertainty analysis in groundwater modeling.The objective of the survey was to improve understanding of the use of uncertainty analysis in practical groundwater modeling projects subject to real-world constraints, such...

Luis, Steve; Schulmeyer, Pete; Bean, David; Newman, Connor; Puddephatt, Dan; Sheets, Rodney A.; Hunt, Randall J.

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Year Published: 2020

Major hydrostratigraphic contacts of the Truxton basin and Hualapai Plateau, northwestern Arizona, developed from airborne electromagnetic data

The area surrounding the Grand Canyon has spectacular outcrop exposure in the modern canyon walls, leading to stratigraphic contact delineations that are well constrained near canyons yet poorly constrained where the terrain remains undissected and relatively unexplored by boreholes. An airborne electromagnetic and magnetic survey of the western...

Mason, Jon P.; Ball, Lyndsay B.
Ball, L.B., 2020, Major hydrostratigraphic contacts of the Truxton basin and Hualapai Plateau, northwestern Arizona, developed from airborne electromagnetic data, chap. D of Mason, J.P., ed., Geophysical surveys, hydrogeologic characterization, and groundwater flow model for the Truxton basin and Hualapai Plateau, northwestern Arizona: U.S. Geological Survey Scientific Investigations Report 2020–5017, 24 p., https://doi.org/10.3133/sir20205017D.

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Year Published: 2020

Probabilistic seismic hazard analysis at regional and national scale: State of the art and future challenges

Seismic hazard modelling is a multi-disciplinary science that aims to forecast earthquake occurrence and its resultant ground shaking. Such models consist of a probabilistic framework that quantifies uncertainty across a complex system; typically, this includes at least two model components developed from Earth science: seismic-source and ground-...

Gerstenberger, M. C.; Marzocchi, W.; Allen, T. J.; Pagani, M.; Adams, Janice; Danciu, L.; Field, Edward H.; Fujiwara, H.; Luco, Nicolas; Ma, K-F; Meletti, C.; Petersen, Mark D.

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Year Published: 2020

Climatically driven displacement on the Eglington fault, Las Vegas, Nevada

The Eglington fault is one of several intrabasinal faults in the Las Vegas Valley, Nevada and is the only one recognized as a source for significant earthquakes. Its broad warp displaces late Pleistocene paleo-spring deposits of the Las Vegas Formation, which record hydrologic fluctuations that occurred in response to millennial and submillennial-...

Springer, Kathleen B.; Pigati, Jeffrey S.

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Year Published: 2020

Pyrrhotite distribution in the conterminous United States, 2020

In parts of Connecticut and Massachusetts, foundations of some homes are cracking and crumbling. Failing foundations can reduce the market value of a home and lifting a house to replace and repour a foundation is an expensive undertaking. In response, some homeowners are defaulting on their mortgages and abandoning their homes. The...

Mauk, Jeffrey L.; Crafford, Thomas C.; Horton, John D.; San Juan, Carma A.; Robinson,, Gilpin R.
Mauk, J.L., Crafford, T.C., Horton, J.D., San Juan, C.A., and Robinson, G.R., Jr., 2020, Pyrrhotite distribution in the conterminous United States, 2020: U.S. Geological Survey Fact Sheet 2020-3017, 4 p., https://doi.org/10.3133/fs20203017.

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Year Published: 2020

Characterization of feed coals and coal combustion byproducts from the Wyodak-Anderson coal zone, Powder River Basin, Wyoming

The U.S. Geological Survey (USGS) determined the physical and chemical properties of more than 260 feed coal and coal combustion byproducts from two coal-fired power plants. These plants utilized a low-sulfur (0.23-0.47 wt. % S) and low ash (4.9-6.3 wt. % ash) subbituminous coal from the Wyodak-Anderson coal zone in the Tongue River Member of the...

Brownfield, Michael E.

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: 524
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.

Rio Grande near Radium Springs, New Mexico
February 4, 2014

Rio Grande near Radium Springs, New Mexico

South-oriented view of the Rio Grande near Radium Springs, New Mexico, February 4, 2014 (photograph by Andrew J. Robertson).

SIR 2016–5010

Jemez Mountains with aspen trees, NM.
December 31, 2013

Jemez Mountains with aspen trees, NM.

Jemez Mountains with aspen trees, NM. 

Debris blocking a gage, tributary to Whitewater Canyon, Gila National Forest, Glenwood, NM, NMWSC
October 23, 2013

Debris blocking a gage, tributary to Whitewater Canyon

Debris blocking a gage, tributary to Whitewater Canyon, Gila National Forest, Glenwood, NM, NMWSC

Apex of large debris flow, tributary to Whitewater Canyon, Gila National Forest, Glenwood, NM
October 23, 2013

Apex of large debris flow, tributary to Whitewater Canyon

Apex of large debris flow, tributary to Whitewater Canyon, Gila National Forest, Glenwood, NM

Debris covering roadway leading to the Catwalk trail head in Whitewater Canyon, Gila National Forest, Glenwood, NM
October 23, 2013

Debris covering roadway leading to the Catwalk trail head

Debris covering roadway leading to the Catwalk trail head in Whitewater Canyon, Gila National Forest, Glenwood, NM

Large debris flow, tributary to Whitewater Canyon, Gila National Forest, Glenwood, NM
October 22, 2013

Large debris flow, tributary to Whitewater Canyon

Large debris flow, tributary to Whitewater Canyon, Gila National Forest, Glenwood, NM

Image: Measuring Streamflow on Big Thompson River
September 18, 2013

Measuring Streamflow on Big Thompson River

Ben Glass of the USGS Colorado Water Science Center collects streamflow data from a USGS rapid deployment streamgage on the Big Thompson River in Loveland, Colo. The river is one of many that flooded during a significant September 2013 rain event along Colorado's Front Range, damaging or destroying several USGS streamgages.

 

Precipitation data collected in the 7 days before September 18, 2013
September 18, 2013

Precipitation data collected in the 7 days before September 18, 2013

Precipitation data collected in the 7 days before September 18, 2013

Precipitation data collected in the 30 days before September 18, 2013
September 18, 2013

Precipitation data collected in the 30 days before September 18, 2013

Precipitation data collected in the 30 days before September 18, 2013

Image: USGS Field Crew On-Site During the Sept 2013 Colorado Flood
September 17, 2013

USGS Field Crew On-Site During the Sept 2013 Colorado Flood

Bob Brandle of the USGS Colorado Water Science Center records streamflow and water level measurements for the flooded St. Vrain River near Longmont, Colo. The river is one of many that flooded during a significant September 2013 rain event along Colorado's Front Range, damaging or destroying several USGS streamgages.

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: 362
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.