Unified Interior Regions

Region 7: Upper Colorado Basin

Map of Region 7 Upper Colorado River Basin

Map of Region 7 Upper Colorado River 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: 385
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: 5,060
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Year Published: 2019

Multiproxy Cretaceous-Paleogene boundary event stratigraphy: An Umbria-Marche basin-wide perspective

The complete and well-studied pelagic carbonate successions from the Umbria-Marche Basin (Italy) permit the study of the event-rich stratigraphical interval around the Cretaceous-Paleogene (K-Pg) boundary (e.g., Deccan volcanism, boundary impact, Paleocene recovery and climate). To test the robustness of various proxy records (bulk carbonate δ13C...

Sinnesael, Matthias; Montanari, Alessandro; Frontalini, Fabrizio; Coccioni, Rodolfo; Gattacceca, Jerome; Snoeck, Christophe; Wegner, Wencke; Koeberl, Christian; Morgan, Leah E.; de Winter, Niels; DePaolo, Donald J.; Claeys, Philippe

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Year Published: 2019

PaCTS 1.0: A crowdsourced reporting standard for paleoclimate data

The progress of science is tied to the standardization of measurements, instruments, and data. This is especially true in the Big Data age, where analyzing large data volumes critically hinges on that data being standardized. Accordingly, the lack of community-sanctioned data standards in paleoclimatology has largely precluded the benefits of Big...

Kehrwald, Natalie M.; Khider, Deborah; Emile-Geay, Julien; McKay, Nicholas P.; Gili, Yolanda; Garijo, Daniel; Ratnakar, Varun; Brewer, Peter; Csank, Adam; Dassie, Emilie; Delong, Kristine; Felix, Thomas; Gray, William; Jonkers, Lucas; Kahle, Michael; Kaufman, Darrell S.; Richey, Julie N.; Schmittner, Andreas; Sutherland, Elaine Kennedy; Alonso-Garcia, Montserrat; Sebastian, Bertrand; Bothe, Oliver; Bunn, Andrew; Chevalier, Manuel; Francus, Pierre; Frappier, Amy; Goring, Simon; Martrat, Belen; McGregor, Helen V.; Allen, Kathryn J.; Arnaud, Fabien; Axford, Yarrow L.; Barrows, Timothy T.; Bazin, Lucie; Pilaar Birch, S.E.; Bradley, Elizabeth; Bregy, Joshua; Capron, Emilie; Cartapanis, Olivier; Chiang, Hong-Wei; Cobb, Kim; Debret, Maxime; Dommain, Rene; Du, Jianghui; Dyez, Kelsey; Emerick, Suellyn; Erb, Michael; Falster, Georgina; Finsinger, Walter; Fortier, Daniel; Gauthier, Nicolas; George, Steven; Grimm, Eric; Hertzberg, Jennifer; Hibbert, Fiona; Hillman, Aubrey; Hobbs, William; Huber, Matthew; Hughes, Anna L. C.; Jaccard, Samuel; Jiaoyang, Ruan; Kienast, Markus; Konecky, Bronwen; Le Roux, Gael; Lyubchich, Vyacheslav; Novello, Valdir; Olaka, Lydia; Partin, Judson W.; Pearce, Christof; Phipps, Steven J.; Pignol, Cecile; Pietrowska, Natalia; Poli, Maria-Serena; Prokopenko, Alexander; Schwanck, Franciele; Stepanek, Christian; Swann, George E. A.; Telford, Richard; Thomas, Elizabeth R.; Thomas, Zoe; Truebe, Sarah; von Gunten, Lucien; Waite, Amanda; Weitzel, Nils; Wilhelm, Bruno; Williams, John B.; Winstrup, Mai; Zhao, Ning; Zhou, Yuxin

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Year Published: 2019

Formation mechanisms of quartz veins in orogenic gold deposits: Insights from Grass Valley, California, USA

The orogenic gold veins of Grass Valley, California, USA, compose the historically richest lode gold district in the North American Cordillera. Petrographically, the veins exhibit a range of primary textural relationships allowing the reconstruction of the paragenetic sequence of mineral formation. Two generations of quartz are distinguished by...

Taylor, Ryan; Thomas Monecke; T. James Reynolds

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Year Published: 2019

Geochemistry of hematite veins in IOA-IOCG deposits of SE Missouri, USA: Relation to felsic magmatism and caldera lakes

The paragenesis, textures, and chemical compositions of secondary hematite in regional potassic altered rhyolites, four IOA deposits, the sedimentary iron deposit at Pilot Knob and the Boss IOCG deposit in SE Missouri were determined and compared to primary magnetite from the IOA and IOCG deposits. Magnetite is composed of elements characteristics...

Meighan, Corey J.; Hofstra, Albert H.; Marsh, Erin E.; Lowers, Heather A.; Koenig, Alan

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Year Published: 2019

Absence of magnetite microlites, geochemistry of magnetite veins and replacements in IOA deposits, SE Missouri, USA: Relations to intermediate intrusions

The paragenesis, textures, and chemical compositions of magnetite in two mafic to intermediate intrusions and four IOA deposits in SE Missouri were studied to discriminate between igneous and hydrothermal sources. In this study, we found that replacement magnetite with mineral inclusion-rich cores yields erroneously high Ti, Al, Si, Mg, and Mn...

Meighan, Corey J.; Hofstra, Albert H.; Adams, David; Marsh, Erin E.; Lowers, Heather A.; Koenig, Alan

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Year Published: 2019

Site response in the Oklahoma region from seismic recordings of the 2011 Mw 5.7 Prague earthquake

We invert the shear-wave displacement spectra obtained from 30 three-component, broadband waveforms recorded within 300 km of the 6 November 2011 Mw 5.7 Prague, Oklahoma earthquake to recover the site-response contribution using an inversion method that simultaneously inverts for source, path, and site effects. Site-response functions identify...

Mendoza, C.; Hartzell, Stephen H.

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Year Published: 2019

Surface rupture and distributed deformation revealed by optical satellite imagery: The intraplate 2016 Mw 6.0 Petermann Ranges earthquake, Australia

High-resolution optical satellite imagery is used to quantify vertical surface deformation associated with the intraplate 20 May 2016 Mw 6.0 Petermann Ranges earthquake, Northern Territory, Australia. The 21 ╓ 1 km long NW-trending rupture resulted from reverse motion on a northeast-dipping fault. Vertical surface offsets of up to 0.7 ╓ 0.1 m...

Gold, Ryan D.; Clark, Dan; Barnhart, William D.; King, Tamarah; Quigley, Mark; Briggs, Richard W.

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Year Published: 2019

Characterizing and imaging sedimentary strata using depth-converted spectral ratios: An example from the Atlantic Coastal Plain of the Eastern U.S.

Unconsolidated, near-surface sediments can have a profound influence on the amplitudes and frequencies of ground shaking during earthquakes, and these effects should be accounted for when using amplitude observations for seismic hazard assessments. This study explores methods to use teleseismic arrivals recorded on linear receiver arrays to...

Pratt, Thomas L.

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Year Published: 2019

Evaluating k-nearest neighbor (kNN) imputation models for species-level aboveground forest biomass mapping in northeast China

Quantifying spatially explicit or pixel-level aboveground forest biomass (AFB) across large regions is critical for measuring forest carbon sequestration capacity, assessing forest carbon balance, and revealing changes in the structure and function of forest ecosystems. When AFB is measured at the species level using widely available remote...

Fu, Yuanyuan; He, Hong S; Hawbaker, Todd J.; Henne, Paul D.; Zhu, Zhiliang; Larsen, David R.

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Year Published: 2019

Balancing sampling intensity against spatial coverage for a community science monitoring programme

Community science is an increasingly integral part of biodiversity research and monitoring, often achieving broad spatial and temporal coverage but lower sampling intensity than studies conducted by professional scientists. When designing a community‐science monitoring programme, careful assessment of sampling designs that could be both feasible...

Weiser, Emily L.; Diffendorfer, Jay E.; Grundel, Ralph; Lopez Hoffman, Laura ; Pecoraro, Samuel; Semmens, Darius J.; Thogmartin, Wayne E.

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Year Published: 2019

Mechanisms of methane hydrate formation in geological systems

Natural gas hydrates are ice-like mixtures of gas (mostly methane) and water that are widely found in sediments along the world’s continental margins and within and beneath permafrost in a near-surface depth interval where the pressure is sufficiently high and temperature sufficiently low for gas hydrate to be stable. Beneath this interval, gas...

Kehua You; Peter B. Flemings; Alberto Malinverno; Collett, Timothy; Kristopher Darnell

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Year Published: 2019

Airborne radiometric maps of Mountain Pass, California

Geophysical investigations of Mountain Pass and vicinity were begun as part of an effort to study regional crustal structures as an aid to understanding the geologic framework and mineral resources of the eastern Mojave Desert. The study area encompasses Mountain Pass, host to one of the world’s largest rare earth element carbonatite deposits. The...

Ponce, David A.; Ponce, David A.; Denton, Kevin M.
Ponce, D.A., and Denton, K.M. (D.A. Ponce, ed.), 2019, Airborne radiometric maps of Mountain Pass, California: U.S. Geological Survey Scientific Investigations Map 3412–C, scale 1:62,500, https://doi.org/10.3133/sim3412C.

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: 520
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.

Cattle walking across biological soil crusts in southeastern Utah.
July 31, 2011

Cattle walking across biological soil crusts in southeastern Utah

Cattle walking across biological soil crusts in southeastern Utah.

Climate change combined with overlapping high-intensity land uses are likely to create conditions detrimental to the recreation economy, wildlife habitat, water availability and other resources in hyper-arid landscapes, or drylands, in the future, according to a paper published in Ecosphere

...
Dry conditions at cattle water sources in western Colorado.
July 31, 2011

Dry conditions at cattle water sources in western Colorado

Dry conditions at cattle water sources in western Colorado. 

Climate change combined with overlapping high-intensity land uses are likely to create conditions detrimental to the recreation economy, wildlife habitat, water availability and other resources in hyper-arid landscapes, or drylands, in the future, according to a paper published in Ecosphere.

Image: USGS personnel measure flood waters on Wind River, WY
July 1, 2011

USGS personnel measure flood waters on Wind River, WY

USGS hydrographer Jerrod Wheeler (in cablecar) measures flood flows right before the gagehouse washes away.

06225500 Wind River near Crowheart, WY: Jul 01 2011; 13,900 ft3/s

USGS Streamgage Destroyed by Flood Flows
July 1, 2011

Flood Waters Take USGS Streamgage Wind River near Crowheart, WY

Gagehouse at 06225500 Wind River near Crowheart WY right before it washed away.

Jul 01 2011; 13,900 ft3/s

Image: Flooding in Northwest Colorado
June 30, 2011

Flooding in Northwest Colorado

High floodwaters partially submerge a USGS streamgaging station in Slater Fork, CO.

Image: Flooding in Northwest Colorado
June 7, 2011

Flooding in Northwest Colorado

High floodwaters on the Elk River upstream of Routt County Road 42 near Milner, CO.

Image: Flooding in Northwest Colorado
June 7, 2011

Flooding in Northwest Colorado

High floodwaters on the Elk River upstream of Routt County Road 42 near Milner, CO

Image: Flooding in Northwest Colorado
June 3, 2011

Flooding in Northwest Colorado

A roadway is broken down due to high streamflow near Slater, CO. A USGS streamgage can be seen next to the road.

Image: Flooding in Northwest Colorado
June 3, 2011

Flooding in Northwest Colorado

Floodwaters partially submerge a USGS streamgage station near Slater, CO.

Image: 2011 Great Salt Lake Breach at Lakeside, Utah
May 24, 2011

2011 Great Salt Lake Breach at Lakeside, Utah

Water flowing through the Great Salt Lake breach in 2011, when lake levels were high due to above average snowfall in the Wasatch and Uinta Mountains. The Great Salt Lake breach is an area that allows water to travel between the southern and northern parts of the lake.

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.