Unified Interior Regions

Region 7: Upper Colorado Basin

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Filter Total Items: 336
View of three USGS Visual Identity items
Date Published: July 15, 2015
Status: Active

Precipitation and Streamgage Flood Warning System

Rainfall amounts associated with the September 2013 Colorado Floods exceeded 15 inches in some locations and resulted in significant flooding along the Front Range (Hydrometeorological Design Studies Center, 2013). These events resulted in streamflows that compromised a variety of transportation structures such as bridges and culverts and roadways.

By coupling the National Oceanic and...

Contacts: John W Fulton
USGS
Date Published: July 1, 2015
Status: Completed

Lower Gunnison River Basin - Gunnison River Synoptic

In response to the need for more information about selenium (Se) sources and transport, the U.S. Geological Survey, in cooperation with the Colorado Water Conservation Board, completed a study that characterized Se loads in a reach of the Gunnison River between Delta and Grand Junction, Colo.

This study identifies where possible dissolved Se loading is occurring in a study reach in the...

View of three USGS Visual Identity items
Date Published: July 1, 2015
Status: Active

Selenium on Sediment in Lower Gunnison River Basin Critical Habitat

The Gunnison Basin Selenium Management Program (SMP) implemented a water-quality monitoring network in 2011 in the lower Gunnison River Basin in Colorado. Selenium (Se) is a trace element that bioaccumulates in aquatic food chains and can cause reproductive failure, deformities, and other harmful effects.

The dissolved concentration of selenium in the water column is not necessarily a...

Potentiometric Surfaces and Groundwater-Level Changes, NMWSC
Date Published: June 25, 2015
Status: Completed

Potentiometric Surfaces and Groundwater-Level Changes

In the past, groundwater pumped from the Santa Fe Group aquifer system was the principal source of water for the Albuquerque metropolitan area of central New Mexico. The large quantity of groundwater pumping relative to recharge resulted in substantial drawdown in the aquifer system. In 2008 the Albuquerque Bernalillo County Water Utility Authority began diverting water from the San Juan-Chama...

Bandelier National Monument, NM, NMWSC
Date Published: June 25, 2015
Status: Active

Changes in Watershed Hydrologic Response Time with Post-wildfire Changes in Vegetation and Surface Fuels Along a Severely-burned, High-desert Canyon, Bandelier National Monument, NM

Flash flooding can be a destructive and life-threatening response of watersheds to intense rainfall events, particularly in sparsely­ vegetated, or burned watersheds. Studies have been conducted to estimate the magnitude of hydrologic responses of burned watersheds to rainfall events, however the time that it takes a flood to travel through a burned watershed and reach a critical or populated...

Contacts: Anne C Tillery
5-year water level networks, New Mexico Water Science Center
Date Published: June 23, 2015
Status: Active

NMWSC Groundwater Data Program

Historic and current groundwater data may be used to help guide water management in New Mexico. Groundwater levels measured by the USGS provide the public, State, and Federal agencies, and cooperators with reliable and impartial information. 

Las Conchas Fire, NM Water Science Center
Date Published: June 23, 2015
Status: Completed

Post-Wildfire Investigation: Analysis of Soil Properties Based on Burn Severity

The Las Conchas fire started on June 26, 2011, near the small community of Las Conchas in the Jemez Mountains of north-central New Mexico. When the fire was contained on August 3, 2011, it had burned 156,593 acres of mixed conifer, pinyon/juniper and ponderosa forest and at the time was the largest wildfire in New Mexico history. Peak burn severity was extreme; over 60,000 acres of the total...

Contacts: For contact information, please reach out to:
TAAP Map, US Geological Survey
Date Published: June 13, 2015
Status: Active

Transboundary Aquifer Assessment Program (TAAP)

Transboundary aquifers are an essential source of water for United States – Mexico border communities. Declining water levels, deteriorating water quality, and increasing use of groundwater resources on both sides of the border raise concerns about the long-term availability of this supply.

The U.S. – Mexico Transboundary Aquifer Assessment Act (Public Law 109-448) of 2006 was enacted...

Rio San Jose Basin Map, NMWSC
Date Published: June 6, 2015
Status: Active

Water Resource Assessment of the Rio San Jose Basin, West-Central New Mexico

Water resources in the Rio San Jose Basin are limited, and development for public supply, mining, agriculture, and commercial activities have the potential to affect the water availability and quality at a basin-wide scale. This study is designed to provide water-resource managers with better information to plan for potential effects of increased or shifting demands and changes of climatic...

Embudo Gage, New Mexico Water Science Center
Date Published: June 5, 2015
Status: Active

Streamgaging: Silent Sentinels

Streamflow data are needed at many sites on a daily basis for forecasting flow extremes, making water-management decisions, assessing current water availability, managing water quality, and meeting legal requirements. These activities require streamflow information at a given location for a specified time. These needs generally are best satisfied by operating a station to produce a continuous...

Contacts: Mark A Gunn
Upper Rio Grande Water Operations Model Map, NMWSC
Date Published: June 4, 2015
Status: Active

URGWOM: Upper Rio Grande Water Operations Model

The Upper Rio Grande (URG) River Basin extends from the headwaters in Colorado to the USGS streamflow gage Rio Grande near Fort Quitman, Texas, and includes both native water and transmountain water from the Colorado River Basin. Because of surface-water allotment issues, input from various sources of water (native and transmountain), numerous reservoirs, and complex stream-aquifer relations,...

Contacts: For contact information, please reach out to:
USGS
Date Published: May 25, 2015
Status: Active

Rio Grande Compact and Pecos River Commission

Rio Grande Compact and Pecos River Commission

Filter Total Items: 4,438
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Year Published: 2019

Geochemistry of a thermally immature Eagle Ford Group drill core in central Texas

The Upper Cretaceous Eagle Ford Group displays significant lateral and vertical geochemical variability. Much of the work on the Eagle Ford Group has been focused southwest of the San Marcos arch. To more fully characterize the Eagle Ford across the entire region, a thermally immature drill core was acquired north of the San Marcos arch that...

French, Katherine L.; Birdwell, Justin E.; Whidden, Katherine J.

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Year Published: 2019

Applying the Community Ice Sheet Model to evaluate PMIP3 LGM climatologies over the North American ice sheets

We apply the Community Ice Sheet Model (CISM2) to determine the extent to which the Last Glacial Maximum (LGM) temperature and precipitation climatologies from the Paleoclimate Modelling Intercomparison Project 3 (PMIP3) simulations support the large North American ice sheets that were prescribed as a boundary condition. We force CISM2 with eight...

Alder, Jay R.; Hostetler, Steven W.

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Year Published: 2019

Structure contour and overburden maps of the Niobrara interval of the Upper Cretaceous Cody Shale in the Wind River Basin, Wyoming

The Wind River Basin in central Wyoming is one of many structural and sedimentary basins that formed in the Rocky Mountain foreland during the Laramide orogeny. The basin is bounded by the Washakie, Owl Creek, and southern Bighorn uplifts on the north, the Casper arch on the east, the Granite Mountains uplift on the south, and Wind...

Finn, Thomas M.
Finn, T.M., 2019, Structure contour and overburden maps of the Niobrara interval of the Upper Cretaceous Cody Shale in the Wind River Basin, Wyoming: U.S. Geological Survey Scientific Investigations Map 3427, pamphlet 9 p., 2 sheets, scale 1:500,000, https://doi.org/10.3133/sim3427

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Year Published: 2019

Historical background and current developments for mapping burned area from satellite Earth observation

Fire has a diverse range of impacts on Earth's physical and social systems. Accurate and up to date information on areas affected by fire is critical to better understand drivers of fire activity, as well as its relevance for biogeochemical cycles, climate, air quality, and to aid fire management. Mapping burned areas was traditionally done...

Chuvieco, Emilio; Mouillot, Flourent; van der Werf, Guido R.; San Miguel, Jesús; Tanasse, Mihai; Koutsias, Nikos; García, Mariano; Yebra, Marta; Padilla, Marc; Heil, Angelika; Hawbaker, Todd J.; Giglio, Louis

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Year Published: 2019

A hierarchical Bayesian approach for handling missing classification data

Ecologists use classifications of individuals in categories to understand composition of populations and communities. These categories might be defined by demographics, functional traits, or species. Assignment of categories is often imperfect, but frequently treated as observations without error. When individuals are observed but not classified,...

Alison C. Ketz; Therese L. Johnson; Hooten, Mevin B.; N. Thompson Hobbs

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Year Published: 2019

Geologic map of the Hartsel Quadrangle, Park County, Colorado

The Hartsel quadrangle sits nearly in the center of the complex South Park Laramide structural basin. Generally, the basin can be described as an asymmetrical down-faulted feature, dipping to the east. It is bounded by two northwest-trending uplifts: the Sawatch uplift to the west and the Front Range uplift to the east. The west-verging Elkhorn...

Barkmann, Peter E.; Houck, Karen J.; Dechesne, Marieke; Lovekin, Jonathan R.; Johnson, Erinn P.
Barkmann, Peter E., Karen J. Houck, Marieke Dechesne, Jonathan R. Lovekin, and Erinn P. Johnson. “OF-17-04 Geologic Map of the Hartsel Quadrangle, Park County, Colorado.” Geologic, 1:24,000. Open File Reports. Golden, CO: Colorado Geological Survey, 2019.

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Year Published: 2019

A constant slip rate for the western Qilian Shan frontal thrust during the last 200 ka consistent with GPS-derived and geological shortening rates

Active thrust faulting at the front of the Qilian Shan accommodates the northeastward growth of the Tibetan Plateau, however, the lifespan of individual faults and their slip history on different timescales remain largely unknown. Here, we show that the main range-bounding thrust fault of the western Qilian Shan has accrued tectonic slip at an...

Hetzel, Ralf; Hampel, Andrea; Gebbeken, Pia; Xu, Qiang; Gold, Ryan D.

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Year Published: 2019

Strontium residual salt analyses (SrRSA) and geochemistry of Bakken Formation core samples from Fleckten 1-20, North Dakota

Samples of Bakken Formation core from the Fleckton 1-20 well in Ward County, North Dakota, were analyzed using the Strontium Residual Salt Analysis (SrRSA) method to assess pore-water communication among the upper, middle, and lower sections of the unit by analyzing 87Sr/86Sr in pore-water salts leached from the core. Major and trace element...

Peterman, Zell; Futa, Kiyoto; Oliver, Thomas

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Year Published: 2019

Upgrades to a Fortran program for estimating stream transit losses of reusable water, El Paso and Pueblo Counties, Colorado

In 2016, the U.S. Geological Survey, in cooperation with Pikes Peak Regional Water Authority and the Colorado Water Conservation Board, began a study to modernize a Fortran transit-loss accounting program developed by the U.S. Geological Survey to estimate net reusable flows in Fountain and Monument Creeks in El Paso and Pueblo Counties, Colorado...

Colarullo, Susan J.; Miller, Lisa D.
Colarullo, S.J., and Miller, L.D., 2019, Upgrades to a Fortran program for estimating stream transit losses of reusable water, El Paso and Pueblo Counties, Colorado: U.S. Geological Survey Scientific Investigations Report 2018–5163, 21 p., https://doi.org/10.3133/sir20185163.

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Year Published: 2019

Reimagining the potential of Earth observations for ecosystem service assessments

The benefits nature provides to people, called ecosystem services, are increasingly recognized and accounted for in assessments of infrastructure development, agricultural management, conservation prioritization, and sustainable sourcing. These assessments are often limited by data, however, a gap with tremendous potential to be filled...

Ramirez-Reyes, Carlos; Brauman, Kate A.; Chaplin-Kramer, Rebecca; Galford, Gillian L.; Adamo, Susana B.; Anderson, Christopher B.; Anderson, Clarissa; Allington, Ginger R. H.; Bagstad, Kenneth J.; Coe, Michael T.; Cord, Anna F.; Dee, Laura E.; Gould, Rachelle K.; Jain, Meha; Kowal, Virginia A.; Muller-Karger, Frank E.; Norriss, Jessica; Potapov, Peter V.; Qui, Jiangxiao; Rieb, Jesse T.; Robinson, Brian E.; Samberg, Leah H.; Singh, Nagendra; Szeto, Sabrina H.; Voigt, Brian; Watson, Keri; Wright, T. Maxwell

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Year Published: 2019

Kinetics of elemental sulfur reduction by petroleum hydrocarbons and the implications for hydrocarbon thermal chemical alteration

Although sulfur-containing compounds are known to play a significant role in the diagenic and catagenic processes that generate oil and gas, relatively little is known about the kinetics of reactions between elemental S and petroleum hydrocarbons. To investigate this subject, a series of closed-system pyrolysis experiments using paraffin, a low-...

Ellis, Geoffrey S.; Zhang, Tongwei; Kralert, Paul G.; Tang, Yongchun

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Year Published: 2019

Rupture model of the M5.8 Pawnee, Oklahoma earthquake from regional and teleseismic waveforms

The 2016 M5.8 Pawnee, Oklahoma earthquake is the largest earthquake to have been induced by wastewater disposal. We infer the coseismic slip history from analysis of apparent source time functions and inversion of regional and teleseismic P‐waveforms, using aftershocks as empirical Green's functions. The earthquake nucleated on the shallow part of...

Moschetti, Morgan P.; Hartzell, Stephen H.; Herrmann, R. B.

Filter Total Items: 592
Researcher Hauling the Ice Drill
August 29, 2016

Researcher Hauling the Ice Drill

Mike Jayred cares the "Priaire Dog" Ice Drill to the coring location.

Researchers Preparing to Drill in an Ice Patch
August 29, 2016

Researchers Preparing to Drill in an Ice Patch

Nathan Chellman, Mike Jayred and Lucas (Dog) stage equipment on the drilling platform.

Researchers Starting the Ice Core
August 29, 2016

Researchers Starting the Ice Core

Mike Jayred and Nathan Chellman work to level the ice drill to begin taking the core.  Craig Lee stabilizes the platform.

Researchers Drilling the top meter of the Ice Patch
August 29, 2016

Researchers Drilling the top meter of the Ice Patch

Mike Jayred runs the drill while Greg Pederson stabilizies the outer barrel.  Craig Lee and Danny Stahle wait to assist with extraction of the first meter of ice.

Researchers Drilling the top meter of the Ice Patch
August 29, 2016

Researchers Drilling the top meter of the Ice Patch

Mike Jayred runs the drill while Greg Pederson stabilizies the outer barrel.  Craig Lee and Danny Stahle wait to assist with extraction of the first meter of ice.

Bottom of the Ice Core
August 29, 2016

Bottom of the Ice Core

Craig Lee holds the ice drill with the end of the first ice core segment exposed.  The sample will next be measured, logged, and processed in the field. 

August 18, 2016

Debris flow monitoring at Chalk Cliffs, CO (2016)

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 18, 2016. The video includes two different views of an

...
Ice patch in Greater Yellowstone Ecosystem
August 12, 2016

Ice patch in Greater Yellowstone Ecosystem

An ancient ice patch located in the northeastern corner of the Greater Yellowstone Ecosystem.

Researchers Scouting a Drilling Location on an Ice Patch
August 12, 2016

Researchers Scouting a Drilling Location on an Ice Patch

Craig Lee and Mike Jayred scout a potential drilling location for extracting an ice core.

Ice patch in Greater Yellowstone Ecosystem
August 12, 2016

Ice patch in Greater Yellowstone Ecosystem

An ancient ice patch located in the northeastern corner of the Greater Yellowstone Ecosystem

Filter Total Items: 315
USGS
February 15, 2006

Products based on NASA Earth observations and a new Internet-based decision tool are providing information to help land and water managers combat tamarisk (saltcedar), an invasive plant species impacting precious water supplies in the western U.S.

USGS
February 8, 2006

Ensuring stable water supplies has grown more complex as the challenges facing water managers continue to mount, especially in the West. Informed decisions of water users and public officials will be necessary to ensure sufficient freshwater resources in the future to support a growing population and economy. 

USGS
January 19, 2006

The U.S. Geological Survey (USGS) National Earthquake Center in Golden, Colo., today announced the implementation of a new 24/7 operation center and seismic event processing system, HYDRA. When combined, the round-the-clock on-site personnel and new technology are expected to cut in half the amount of time required to report information about earthquakes around the globe.

USGS
November 14, 2005

The U.S. Geological Survey (USGS) will teach 300 students how to find their place in space by using geographic information systems (GIS) on Wednesday, Nov. 16 in celebration of GIS Day 2005. 

USGS science for a changing world logo
October 25, 2005

Today, the USGS released The State of the Colorado River Ecosystem in Grand Canyon, a comprehensive report that details the impacts of the operation of Glen Canyon Dam and other management actions on downstream resources within Grand Canyon National Park.

USGS science for a changing world logo
October 14, 2005

U.S. Geological Survey (USGS) scientist Michelle Walvoord will be honored as the 2005 Subaru Outstanding Woman in Science at the annual Geological Society of America (GSA) meeting in Salt Lake City, Utah, on Oct. 15. Walvoord, who resides in Golden, is a Research Hydrologist at the USGS National Research Program in Lakewood.

USGS
October 14, 2005

U.S. Geological Survey (USGS) scientist Michelle Walvoord will be honored as the 2005 Subaru Outstanding Woman in Science at the annual Geological Society of America (GSA) meeting in Salt Lake City, Utah, on Oct. 15. Walvoord, who resides in Golden, is a Research Hydrologist at the USGS National Research Program in Lakewood.

USGS
October 4, 2005

The USGS announced today the start of the public-private competition that will determine current and future functions; and the number of personnel required by the National Geospatial Technical Operations Center (NGTOC) at the Denver Federal Center, an all government campus, located in Lakewood, Colo.

USGS
September 15, 2005

The USGS announced today (Sept. 15, 2005) that the National Geospatial Technical Operations Center (NGTOC) will be located in the city of Denver. The NGTOC will consolidate the functions and operations currently performed in four USGS mapping centers (Menlo Park, Calif.; Rolla, Mo.; Denver, Colo.; and Reston, Va.) and other distributed sites to one location.

USGS science for a changing world logo
September 15, 2005

The USGS announced today (Sept. 15, 2005) that the National Geospatial Technical Operations Center (NGTOC) will be located in the city of Denver. The NGTOC will consolidate the functions and operations currently performed in four USGS mapping centers (Menlo Park, Calif.; Rolla, Mo.; Denver, Colo.; and Reston, Va.) and other distributed sites to one location.

USGS
August 1, 2005

In its latest report on water use in the United States, the USGS looked at the nation's dependence on ground water. The report entitled Estimated Withdrawals from Principal Aquifers in the United States, 2000, provides details of ground-water withdrawals and use from principal aquifers in each state.

USGS science for a changing world logo
May 23, 2005

The USGS’s Grand Canyon Monitoring and Research Center (GCMRC), under the auspices of the Glen Canyon Dam Adaptive Management Program, will conduct scientific overflights in Grand Canyon National Park over Memorial Day weekend.

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