Unified Interior Regions

Region 7: Upper Colorado Basin

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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: 384
Date published: May 10, 2002
Status: Completed

Using GIS and Multivariate Regressions to Model Salt and Selenium Loads in Regions of the Upper Colorado River Basin

Elevated loads of salt and selenium can impair the quality of water for both anthropogenic and natural uses. Understanding the environmental processes controlling how salt and selenium are introduced to streams is critical to managing and mitigating the effects of elevated loads. Dominant relations between salt and selenium loads and environmental characteristics can be established by using...

Date published: November 15, 2001
Status: Archived

SAGEMAP

A GIS Database for Sage-grouse and Shrubsteppe Management in the Intermountain West

Contacts: Steven E Hanser
Date published: October 1, 2001
Status: Completed

Water-Quality Sampling at Five Hydrologic Benchmark Stations in the Western United States

The Hydrologic Benchmark Network (HBN) was established in 1963 to provide  Swiftwater Creek, MT long-term measurements of streamflow and water quality in areas of the United States that are minimally affected by human activities. Historically, the HBN has used a fixed-interval sampling strategy, however other more robust sampling strategies are now available. Trend networks, for example, can...

Date published: June 19, 2000
Status: Completed

NAWQA South Platte River Basin Study

The South Platte River Basin study, conducted as part of the U.S. Geological Survey's National Water-Quality Assessment Program, combines information on water chemistry, physical characteristics, stream habitat, and aquatic life to provide science-based insights for current and...

Date published: May 15, 2000
Status: Completed

Water-Quality Monitoring of the Vallecito Reservoir Watershed

The water quality of the Vallecito Reservoir watershed in southwestern Colorado was initially studied by the U.S. Geological Survey (USGS) during July 1996 to July 1997, in cooperation with the Pine River Irrigation District, to assess the suitability of the reservoir as a potential source of drinking water (Ranalli and Evans, 1999). As a result of this study, in December 1997 a group of...

Contacts: Nancy J Bauch
Date published: October 31, 1998
Status: Completed

Effects of increasing urbanization on ground- and surface-water resources in the Fraser River watershed

The USGS has assessed the effects of increasing urbanization on ground- and surface-water resources in the Fraser River watershed. The population of Grand County increased 93 percent between the years of 1970 and 1990. The majority of the new development in the watershed will rely on ground water and individual septic disposal systems (ISDS's). This study has assessed the potential effects of...

Contacts: Nancy J Bauch
Date published: April 2, 1998
Status: Completed

Effects of Fluvial Tailings Deposits on Receiving Waters in the Upper Arkansas River Basin, Lake County, Colorado

Fluvial tailings deposits stored in the floodplain of the upper Arkansas River represent a potential nonpoint source of contamination to surface and ground waters. The U.S. Geological Survey has been cooperating with the U.S. Environmental Protection Agency to monitor a lowcost, insitu remediation technique for the deposits. Remediation of selected sites occurred in 1998 through 2000 by...

Date published: May 23, 1997
Status: Active

Groundwater-level data for the Albuquerque Basin and Adjacent Areas

The Albuquerque hydrologic basin extends along the Rio Grande from Cochiti in the north to San Acacia in the south. Increases in groundwater pumping to accommodate population growth in the basin resulted in substantial groundwater-level drawdown in some areas.

Contacts: Joseph E Beman
Date published: May 22, 1997
Status: Archived

Groundwater Monitoring in the Espanola Basin Piezometers

In 1996, the U.S. Geological Survey, in cooperation with the City of Santa Fe, and the New Mexico Office of the State Engineer began a drilling program to install specialized monitoring wells in the Espanola basin. The purpose of the program is to monitor hydraulic head at specific depths in the aquifer. Most of these specialized wells, called piezometers, are located in areas between major...

Contacts: Joseph E Beman
Date published: May 22, 1997
Status: Active

Groundwater-Level Monitoring in Middle Rio Grande Basin Piezometers

In 1996, the U.S. Geological Survey, in cooperation with the New Mexico Office of the State Engineer and the Albuquerque Bernallilo County Water Utility Authority, began a drilling program to install specialized monitoring wells in the Middle Rio Grande Basin. The purpose of the program is to monitor hydraulic head at specific depths in the aquifer (fig. 1). Most of these specialized wells,...

Contacts: Joseph E Beman
Date published: May 22, 1997
Status: Active

Middle Rio Grande Piezometer network

In 1996, the U.S. Geological Survey, in cooperation with the New Mexico Office of the State Engineer and the Albuquerque Bernallilo County Water Utility Authority, began a drilling program to install specialized monitoring wells in the Middle Rio Grande Basin. The purpose of the program is to monitor hydraulic head at specific depths in the aquifer (fig 1). Most of these specialized wells,...

Contacts: Joseph E Beman
Date published: October 20, 1996
Status: Completed

Upper Animas River Basin Abandoned Mine Lands Initiative

The USGS Abandoned Mine Lands Initiative (AMLI) is developing and demonstrating scientific knowledge and technologies that will help Federal land management agencies clean up contamination in areas near abandoned hardrock mines across the Nation. The Initiative is being conducted in two pilot watersheds, the Upper Animas River Basin in Colorado and the...

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: 4,890
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Year Published: 2019

Petrology of volcanic rocks associated with silver-gold (Ag-Au) epithermal deposits in the Tonopah, Divide, and Goldfield Mining Districts, Nevada

Miocene calc-alkaline volcanic rocks, part of the southern segment of the ancestral Cascades magmatic arc, are spatially, temporally, and likely genetically associated with precious metal epithermal deposits in the Tonopah, Divide, and Goldfield Districts of west-central Nevada. In the Tonopah mining district, volcanic rocks include the Mizpah...

du Bray, Edward A.; John, David A.; Colgan, Joseph P.; Vikre, Peter G.; Cosca, Michael A.; Morgan, Leah E.
du Bray, E.A., John, D.A., Colgan, J.P., Vikre, P.G., Cosca, M.A., and Morgan, L.E., 2019, Petrology of volcanic rocks associated with silver-gold (Ag-Au) epithermal deposits in the Tonopah, Divide, and Goldfield mining districts, Nevada: U.S. Geological Survey Scientific Investigations Report 2019–5024, 22 p., https://doi.gov/10.3133/sir20195024.

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Year Published: 2019

Variability of estimated ultimate recovery in shale oil and shale gas accumulations in the U.S.

Variability of mean EURs within and between unconventional reservoirs is becoming more apparent as thousands of wells are drilled and oil and gas is produced from unconventional low-permeability reservoirs. Production from many of these reservoirs shows that there is spatial heterogeneity of EURs, which is mainly related to geologic...

Schenk, Christopher J.; Leathers-Miller, Heidi M.

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Year Published: 2019

Constraining parameter uncertainty in modeling debris-flow initiation during the September 2013 Colorado Front Range storm

The occurrence of debris flows during the September 2013 northern Colorado floods took the emergency management community by surprise. The September 2013 debris flows in the Colorado Front Range initiated from shallow landslides in colluvium. Most occurred on south- and east-facing slopes on the walls of steep canyons in crystalline rocks and on...

Baum, Rex L.; Scheevel, C.R.; Jones, Eric S.

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Year Published: 2019

Bayesian analysis of the impact of rainfall data product on simulated slope failure for North Carolina locations

In the past decades, many different approaches have been developed in the literature to quantify the load-carrying capacity and geotechnical stability (or the Factor of Safety, F_s) of variably saturated hillslopes. Much of this work has focused on a deterministic characterization of hillslope stability. Yet, simulated F_s values are subject to...

Yatheendradas, Soni; Kirschbaum, Dalia; Nearing, Grey; Vrugt, Jasper A.; Baum, Rex L.; Wooten, Rick; Lu, Ning; Godt, Jonathan W.
Yatheendradas, S., Kirschbaum, D., Nearing, G., Vrugt, J.A., Baum, R.L., Wooten, Rick, Lu, Ning, Godt, J.W., 2019, Bayesian analysis of the impact of rainfall data product on simulated slope failure for North Carolina locations: Computational Geosciences, v. 23, no. 3, p. 495–522. https://doi.org/10.1007/s10596-018-9804-y

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Year Published: 2019

Earthquake-induced chains of geologic hazards: Patterns, mechanisms, and impacts

Large earthquakes initiate chains of surface processes that last much longer than the brief moments of strong shaking. Most moderate- and large-magnitude earthquakes trigger landslides, ranging from small failures in the soil cover to massive, devastating rock avalanches. Some landslides dam rivers and impound lakes, which can collapse days to...

Fan, Xuanmei; Scaringi, Gianvito; Korup, Oliver; West, A. Joshua; Westen, Cees J. van; Tanyas, Hakan; Hovius, Niels; Hales, Tristram C; Jibson, Randall W.; Allstadt, Kate E.; Zhang, Limin; Evans, Stephen G.; Xu, Chong; Li, Gen; Pei, Xiangjun; Xu, Qiang; Huang, Runqiu
Fan, X., Scaringi, G. Korup, O., West, A.J., van Westen, C.J., Tanyaş, H., Hovius, N., Hales, T.C., Jibson, R.W., Allstadt, K.E., Zhang, L., Evans, S.G., Xu, C., Li, G., Pei, X., Xu, Q., Huang, R., 2019, Earthquake-induced chains of geologic hazards—Patterns, mechanisms, and impacts: Reviews of Geophysics, v. 57, p. 421-503

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Year Published: 2019

Late Quaternary vegetation development following deglaciation of northwestern Alexander Archipelago, Alaska

The Cordilleran Ice sheet covered most of southeastern Alaska during the Last Glacial Interval (LGI: Marine Isotope Stage 2). Ice began to recede from western Alexander Archipelago ~17,000 + 700 yr BP. In this study pollen analysis and radiocarbon dating of three sediment cores were used to reconstruct, for the first time, the postglacial...

Thomas A. Ager
Ager, T. (2019). Late Quaternary vegetation development following deglaciation of northwestern Alexander Archipelago, Alaska

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Year Published: 2019

Guidance for assessing interregional ecoystem service flows

Ecosystem services (ES) assessments commonly focus on a specific biophysical region or nation and take its geographic borders as the system boundary. Most geographical regions are, however, not closed systems but are open and telecoupled with other regions through ES imports and exports, which are mediated by fluxes of matter, energy and...

Koellner, Thomas; Bonn, Aletta; Arnhold, Sebastian; Bagstad, Kenneth J.; Friedman, Dor; Guerra, Carlos; Kastner, Thomas; Kissinger, Meidad; Kleeman, Janina; Kuhlicke, Christian; Liu, Jianguo; Lopez-Hoffman, Laura; Marques, Alexandra; Martin-Lopez, Berta; Schulp, Catharina J. E.; Wolff, Sarah; Schröter, Matthias

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Year Published: 2019

Explosive summit collapse of Kīlauea Volcano in 1924 preceded by a decade of crustal contamination and anomalous Pb isotope ratios

A geochemical time-series analysis of lavas from frequently active basaltic volcanoes has the potential to reveal the enigmatic mantle controls on volcanic behavior and hazards. In May 1924, the century-long lava lake within Halemaʻumaʻu pit crater at the summit of Kīlauea Volcano drained and the floor of Halemaʻumaʻu collapsed, triggering ∼3 ...

Pietruszka, Aaron; Heaton, Daniel E.; Garcia, Michael O; Marske, Jared P.

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Year Published: 2019

Ross Ice Shelf response to climate driven by the tectonic imprint on seafloor bathymetry

Ocean melting has thinned Antarctica's ice shelves at an increasing rate over the past two decades, leading to loss of grounded ice. The Ross Ice Shelf is currently close to steady state but geological records indicate that it can disintegrate rapidly, which would accelerate grounded ice loss from catchments equivalent to 11.6 m of global sea...

Tinto, K J; Padman, L; Siddoway, C S; Springer, M.R.; Fricker, H.A.; Das, I.; Caratori Tontini, F.; Porter, D.F.; Frearson, N.P.; Howard, S. J.; Siegfried, M.R.; Mosbeux, C.; Becker, M.K.; Bertinato, C.; Boghosian, A.; Brady, N.; Burton, Bethany L.; Chu, W.; Cordero, S.I.; Dhakal, T.; Dong, L.; Gustafson, C.D.; Keeshin, S.; Locke, C.; Lockett, A.; O'Brien, G.; Spergel, J.J.; Starke, S.E.; Tankersley, M.; Wearing, M.; Bell, R.E.

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Year Published: 2019

Estimation of ground motion variability in the CEUS using simulations

We estimate earthquake ground-motion variability in the central and eastern U.S. (CEUS) by varying the model parameters of a deterministic physics-based and a stochastic site-based simulation method. Utilizing a moderate-magnitude database of recordings, we simulate ground motions for larger-magnitude scenarios M6.0, 6.5, 7.0, 7.5, and 8.0. For...

Hartzell, Stephen H.; Sun, Xiaodan; Rezaeian, Sanaz; Clayton, Brandon; Hartzell, Stephen H.

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Year Published: 2019

Probabilistic seismic hazard analysis using stochastic simulated ground motions

: In recent years, ground motion models used in probabilistic seismic hazard analyses (PSHA) have evolved from the traditional approach of using ground motion prediction equations (GMPEs) to using ground motion time series models. The purpose of this paper is to develop an approach to perform a probabilistic seismic hazard analysis using...

Azar, Sarah; Dabaghi, Mayssa; Rezaeian, Sanaz

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: 517
Prairie dog and SPV bait
August 7, 2012

Prairie dog and SPV bait

In this image, a Gunnison prairie dog eats a bait laden with the sylvatic plague vaccine. Prairie dogs in the wild are less likely to succumb to plague after they ingest peanut-butter-flavored bait that contains a vaccine against the disease.

Image: Utah Tribal Coop
June 6, 2012

Utah Tribal Coop

In the stream is Martel Fisher (USGS) and Bart Powaukee (Coordinator Ute Indian Tribe Water Quality Department) and some of the Ute Tribe Water Quality Department employees.

Red Mountain CO
April 22, 2012

Red Mountain, CO Hydrothermal Alteration

Photo showing intense acid-sulfate hydrothermal alteration on Red Mountain No. 2, Silverton CO. View is looking to the west across Corkscrew Gulch. 

Canadian escarpment rising above the plains, northeastern San Miguel County, NMWSC
January 31, 2012

San Miguel Site Map, New Mexico Water Science Center

Canadian escarpment rising above the plains, northeastern San Miguel County, NMWSC

Lava tube opening/possible bat roost with pine forest above.
December 31, 2011

Lava tube opening/possible bat roost with pine forest above.

Opening of a large lava tube at El Malpais National Monument in western New Mexico and likely roost for bats, 2011.

View from sandstone bluff overlooking extinct lava flows at El Malpais National Monument, New Mexico.
December 31, 2011

View from sandstone bluff overlooking extinct lava flows at El Malpais

View from sandstone bluff overlooking extinct lava flows at El Malpais National Monument, New Mexico.

Sunset at the uranium mines at the Grand Canyon, NM.
December 31, 2011

Sunset at the uranium mines at the Grand Canyon, NM.

Sunset at the uranium mines at the Grand Canyon, NM. 

November 17, 2011

PubTalk 11/2011 — Colorado River High-Flow Experiments

- a story of Grand Canyon geology, water, and biology

by Jack Schmidt & David Rubin

 

  • New insights from recent Glen Canyon Dam high-flow experiments on the Colorado River
  • Are these high flows doing more than building large sand bars in Grand Canyon National Park?
  • The challenge of adaptively managing
False-color-composite satellite image of Great Salt Lake, Nov 2011
November 2, 2011

Great Salt Lake

This is a false-color-composite satellite image of Great Salt Lake, Nov 2011. The vegetation appears red.

Measuring streamflow using ADCP, Fish Creek
October 18, 2011

Measuring streamflow using ADCP, Fish Creek

Measuring streamflow using ADCP, Fish Creek

Image: Trees Killed by the 2011 Las Conchas Fire in New Mexico
August 18, 2011

Trees Killed by the 2011 Las Conchas Fire in New Mexico

Extensive, contiguous mortality of piñon pine, ponderosa pine, and Douglas-fir trees, killed in the first afternoon and evening of the 2011 Las Conchas Fire in the Jemez Mountains, New Mexico. Forest drought stress is highly correlated with mortality from poor growth, bark beetle outbreaks, and high-severity fire.

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.