Unified Interior Regions

Colorado

The Rocky Mountain Region ranges from the Colorado Rockies to the Western Deserts to the Great Plains. The Rocky Mountain Region conducts multi- and interdisciplinary research and monitoring in locations across the Region, the United States, around the world, and across our solar system.

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Filter Total Items: 409
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Year Published: 2001

Historical water-quality data for the High Plains Regional Ground-Water Study Area in Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1930-98

The High Plains aquifer underlies 174,000 square miles in parts of eight States and includes eight primary hydrogeologic units, including the well-known Ogallala Formation. The High Plains aquifer is an important resource, providing water for 27 percent of the Nation?s irrigated agricultural lands in an otherwise dry landscape. Since the 1980?s...

Litke, David W.
Historical water-quality data for the High Plains Regional Ground-Water Study Area in Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1930-98; 2001; WRI; 2000-4254; Litke, David W.

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Year Published: 2001

Relations among rainstorm runoff, streamflow, pH, and metal concentrations, Summitville Mine area, upper Alamosa River basin, southwest Colorado, 1995-97

The upper Alamosa River Basin contains areas that are geochemically altered and have associated secondary sulfide mineralization. Occurring with this sulfide mineralization are copper, gold, and silver deposits that have been mined since the 1870's. Weathering of areas with sulfide mineralization produces runoff with anomalously low pH and high...

Rupert, Michael G.
Relations among rainstorm runoff, streamflow, pH, and metal concentrations, Summitville Mine area, upper Alamosa River basin, southwest Colorado, 1995-97; 2001; WRI; 2001-4027; Rupert, Michael G.

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Year Published: 2001

Review and analysis of available streamflow and water-quality data for Park County, Colorado, 1962-98

Information on streamflow and surface-water and ground-water quality in Park County, Colorado, was compiled from several Federal, State, and local agencies. The data were reviewed and analyzed to provide a perspective of recent (1962-98) water-resource conditions and to help identify current and future water-quantity and water-quality concerns....

Kimbrough, Robert A.
Review and analysis of available streamflow and water-quality data for Park County, Colorado, 1962-98; 2001; WRI; 2001-4034; Kimbrough, Robert A.

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Year Published: 2001

Summary of water-quality data, October 1987 through September 1997, for Fountain and Monument Creeks, El Paso and Pueblo Counties, Colorado

Fountain and Monument Creeks, which drain parts of El Paso and Pueblo Counties in Colorado, have been sampled systematically by the U.S. Geological Survey for many years to obtain records of water-quality properties and constituents; the data are stored in the National Water Inventory System. Statistical summaries of these data indicate that they...

Bossong, Clifford R.
Summary of water-quality data, October 1987 through September 1997, for Fountain and Monument Creeks, El Paso and Pueblo Counties, Colorado; 2001; WRI; 2000-4263; Bossong, Clifford R.

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Year Published: 2000

Effects of the Paradox Valley Unit on dissolved solids, sodium, and chloride in the Dolores River near Bedrock, Colorado, water years 1988-98

During 1999, a study was conducted by the U.S. Geological Survey (USGS) in cooperation with the Bureau of Reclamation to evaluate the effect of the Paradox Valley Unit on dissolved solids, sodium, and chloride in the Dolores River downstream from the Paradox Valley Unit. This report describes this evaluation and presents the results from this...

Watts, Kenneth R.
Effects of the Paradox Valley Unit on dissolved solids, sodium, and chloride in the Dolores River near Bedrock, Colorado, water years 1988-98; 2000; WRI; 00-4011; Watts, Kenneth R.

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Year Published: 2000

Trends in precipitation and streamflow and changes in stream morphology in the Fountain Creek watershed, Colorado, 1939-99

The Fountain Creek watershed, located in and along the eastern slope of the Front Range section of the southern Rocky Mountains, drains approximately 930 square miles of parts of Teller, El Paso, and Pueblo Counties in eastern Colorado. Streamflow in the watershed is dominated by spring snowmelt runoff and storm runoff during the summer monsoon...

Stogner, Sr., Robert W.
Trends in precipitation and streamflow and changes in stream morphology in the Fountain Creek watershed, Colorado, 1939-99; 2000; WRI; 2000-4130; Stogner, Robert W., Sr.

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Year Published: 2000

Quality of ground water and surface water in an area of individual sewage disposal system use near Barker Reservoir, Nederland, Colorado, August to September 1998

No abstract available.

Flynn, Jennifer L.; Barber, L.B.
Quality of ground water and surface water in an area of individual sewage disposal system use near Barker Reservoir, Nederland Colorado, August to September 1998; 2000; OFR; 2000-214; Flynn, Jennifer L.; Barber, L. B.

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Year Published: 2000

Effects of the Paradox Valley Unit on dissolved solids, sodium, and chloride in the Dolores River near Bedrock, Colorado, water years 1988-98

During 1999, a study was conducted by the U.S. Geological Survey (USGS) in cooperation with the Bureau of Reclamation to evaluate the effect of the Paradox Valley Unit on dissolved solids, sodium, and chloride in the Dolores River downstream from the Paradox Valley Unit. This report describes this evaluation and presents the results from this...

Watts, Kenneth R.
Effects of the Paradox Valley Unit on dissolved solids, sodium, and chloride in the Dolores River near Bedrock, Colorado, water years 1988-98; 2000; WRI; 2000-4011; Watts, Kenneth R.

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Year Published: 2000

Snowpack chemistry at selected sites in Colorado and New Mexico during winter 1999-2000

Snowpacks at two high-elevation (> 3,000 m) sampling sites near McPhee and Sanchez Reservoirs in southern Colorado were selected to collect representative samples of atmospheric deposition to the surrounding watersheds during winter 1999-2000. In February 2000, annual snowpacks at two sites were sampled to determine concentrations of nitrate...

Ingersoll, George P.
Snowpack chemistry at selected sites in Colorado and New Mexico during winter 1999-2000; 2000; OFR; 2000-394; Ingersoll, George P.

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Year Published: 2000

Pesticides in surface waters of the upper Colorado River basin, Colorado, 1996-98

Forty-four river, stream, and drain sites in the Upper Colorado River Basin in Colorado were sampled during 1996?98 to determine the occurrence and distribution of pesticides in the basin. In a fixed-station study, 57 surface-water samples were collected from October 1996 through January 1998 at four sites. Each site was sampled approximately...

Bauch, Nancy J.; Spahr, Norman E.
Pesticides in surface waters of the upper Colorado River basin, Colorado, 1996-98; 2000; WRI; 2000-4005; Bauch, Nancy J.; Spahr, Norman E.

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Year Published: 2000

Water quality at basic fixed sites in the upper Colorado River basin National Water-Quality Assessment study unit, October 1995-September 1998

The Upper Colorado River Basin study unit of the U.S. Geological Survey National Water-Quality Assessment Program consists of the Colorado River watershed upstream from near the Colorado-Utah State line. The basin is about equally divided between the Southern Rocky Mountains and the Colorado Plateau physiographic provinces. Data were collected at...

Spahr, Norman E.; Boulger, Robert W.; Szmajter, Richard J.
Water quality at basic fixed sites in the upper Colorado River basin National Water-Quality Assessment study unit, October 1995-September 1998; 2000; WRI; 99-4223; Spahr, Norman E.; Boulger, Robert W.; Szmajter, Richard J.

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Year Published: 2000

Evaluation of biological data, Guanella Pass Area, Clear Creek and Park counties, Colorado, water years 1995-97

Macroinvertebrate and algal community samples were collected during a 3-year period at sites located near Guanella Pass, Colorado, to provide baseline characterization data. Water-quality sampling and habitat evaluations were used to aid in the interpretation of the biological data. The study was part of an environmental investigation for a...

Cox-Lillis, Jennifer R.
Evaluation of biological data, Guanella Pass Area, Clear Creek and Park counties, Colorado, water years 1995-97; 2000; OFR; 2000-54; Cox-Lillis, Jennifer R.