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

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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: 5,294
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Year Published: 2020

Earthquakes, did you feel it?

The US Geological Survey (USGS) “Did You Feel It?”® (DYFI) system is an automated system for rapidly collecting macroseismic intensity data from Internet users’ shaking and damage reports and generating intensity maps immediately following earthquakes.Although the collection and assignment of DYFI-based Macroseismic Intensity (MI) data depart...

Wald, David J.; Quitoriano, Vince; Dewey, James W.

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Year Published: 2020

The influence of frost weathering on the debris flow sediment supply in an alpine basin

Rocky, alpine mountains are prone to mass wasting from debris flows. The Chalk Cliffs study area (central Colorado, USA) produces debris flows annually. These debris flows are triggered when overland flow driven by intense summer convective storms mobilizes large volumes of sediment within the channel network. Understanding the debris flow...

Rengers, Francis K.; Kean, Jason W.; Reitman, Nadine G.; Smith, Joel B.; Coe, Jeffrey A.; McGuire, Luke

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Year Published: 2020

Natural gas hydrates: Status of potential as an energy resource

Gas hydrate is a widespread naturally-occurring combination of water and natural gases. Gas hydrate is found in shallow sediments of deepwater regions of the continental margins and in areas of continuous permafrost. Where gas supply is sufficient and migration pathways connect gas sources to favorable reservoirs, gas hydrate can accumulate to...

Boswell, Ray; Hancock, Steve; Yamamoto, Koji; Collett, Timothy; Pratap, Mahendra; Lee, Sung-Rock

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Year Published: 2020

Dilution and propagation of provenance trends in sand and mud: Geochemistry and detrital zircon geochronology of modern sediment from central California (U.S.A.)

Integrated, multi-method provenance studies of siliciclastic sedimentary deposits are increasingly used to reconstruct the history of source-to-sink transport, paleogeography, and tectonics. Invariably, analysis of large-scale depositional systems must confront issues regarding how to best sample the system and adequately cope with the details of...

Malkowski, Matthew A.; Sharman, Glenn R.; Johnstone, Samuel A.; Grove, Marty J.; Kimbrough, Dave L.; Graham, Stephen A.

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Year Published: 2020

Effects of John Martin Reservoir on water quality and quantity: Assessment by chemical, isotopic, and mass-balance methods

Water quality and quantity can be influenced by transit through and storage in reservoirs. Assessing such effects can be challenging, however, because of mixing and residence times, and inter-annual net storage and release from both the reservoir itself and surrounding porosity. Here, different methodologies were used to assess the effect of John...

Bern, Carleton R.; Holmberg, Michael J.; Kisfalusi, Zachary D.

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Year Published: 2020

A high-resolution seismic catalog for the initial 2019 Ridgecrest Earthquake sequence: Foreshocks, aftershocks, and faulting complexity

I use template matching and precise relative relocation techniques to develop a high-resolution earthquake catalog for the initial portion of the 2019 Ridgecrest earthquake sequence, from July 4-16, encompassing the foreshock sequence and the first 10+ days of aftershocks following the Mw 7.1 mainshock. Using 13,525 routinely cataloged events as...

Shelly, David R.

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Year Published: 2020

Estimating burn severity and carbon emissions from a megafire in boreal forests of China

Wildfires, especially those of large size, worsen air quality and alter the carbon cycle through combustion of large quantities of biomass and release of carbon into the atmosphere. The Black Dragon fire, which occurred in 1987 in the boreal forests of China is among the top five of such megafires ever recorded in the world. With over 30 years of...

Xu, Wenru; He, Hong S; Hawbaker, Todd; Zhu, Zhiliang; Henne, Paul

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Year Published: 2020

Evaluation of ground‐motion models for U.S. Geological Survey seismic hazard forecasts: Hawaii tectonic earthquakes and volcanic eruptions

The selection and weighting of ground‐motion models (GMMs) introduces a significant source of uncertainty in U.S. Geological Survey (USGS) National Seismic Hazard Modeling Project (NSHMP) forecasts. In this study, we evaluate 18 candidate GMMs using instrumental ground‐motion observations of horizontal peak ground acceleration (PGA) and 5%‐damped...

McNamara, Daniel E.; Wolin, Emily; Powers, Peter M.; Shumway, Allison; Moschetti, Morgan P.; Rekoske, John; Thompson, Eric M.; Mueller, Charles; Petersen, Mark D.

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Year Published: 2020

A domestic earthquake impact alert protocol based on the combined USGS PAGER and FEMA Hazus loss estimation systems

The U.S. Geological Survey’s PAGER alert system provides rapid (10-20 min) but general loss estimates of ranges of fatalities and economic impact for significant global earthquakes. FEMA’s Hazus software, in contrast, provides time consuming (2-5 hours) but more detailed loss information quantified in terms of structural, social, and economic...

Wald, David J.; Seligson, Hope A.; Rozelle, Jesse; Burns, Jordan; Marano, Kristin; Jaiswal, Kishor; Hearne, Mike; Bausch, Douglas

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Year Published: 2020

High-resolution airborne geophysical survey of the Shellmound, Mississippi area

In late February to early March 2018, the U.S. Geological Survey acquired 2,364 line-kilometers (km) of airborne electromagnetic, magnetic, and radiometric data in the Shellmound, Mississippi study area. The purpose of this survey is to contribute high-resolution information about subsurface geologic structure to inform groundwater models, water...

Burton, Bethany L.; Minsley, Burke J.; Bloss, Benjamin R.; Kress, Wade H.; Rigby, James R.; Smith, Bruce D.
Burton, B.L., Minsley, B.J., Bloss, B.R., Kress, W.H., Rigby, J.R., and Smith, B.D., 2020, High-resolution airborne geophysical survey of the Shellmound, Mississippi area: U.S. Geological Survey Scientific Investigations Map 3449, 2 sheets, https://doi.org/10.3133/sim3449.

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Year Published: 2020

Seepage investigation of the Rio Grande from below Leasburg Dam, Leasburg, New Mexico, to above El Paso, Texas, 2018

Seepage investigations were conducted periodically by the U.S. Geological Survey (USGS) from 1988 to 1998 and from 2006 to 2015 along a 64-mile reach of the Rio Grande as part of the Mesilla Basin monitoring program. Past studies were conducted during no-flow or low-flow periods. In 2018, a seepage investigation was conducted during April 3–4...

Ball, Grady P.; Robertson, Andrew J.; Morales, Karen Medina
Ball, G.P., Robertson, A.J., and Medina Morales, K., 2020, Seepage investigation of the Rio Grande from below Leasburg Dam, Leasburg, New Mexico, to above El Paso, Texas, 2018: U.S. Geological Survey Scientific Investigations Report 2019–5140, 16 p., https://doi.org/10.3133/sir20195140.

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
Workers collect snow sample at Apgar Lookout sampling site, Montana.
March 18, 2009

Workers collect snow sample at Apgar Lookout sampling site, Montana.

Workers collect snow sample at Apgar Lookout sampling site, Montana.

Worker prepares snowpack-sampling pit at Brumley, Colorado
March 17, 2009

Worker prepares snowpack-sampling pit at Brumley, Colorado

Worker prepares snowpack-sampling pit at Brumley, Colorado.

Precipitation collectors near snowpack-sampling site at Elk River, Colorado
March 13, 2009

Precipitation collectors near snowpack-sampling site at Elk River, CO

Precipitation collectors near snowpack-sampling site at Elk River, Colorado

National Atmospheric Deposition site near Gypsum Creek, Wyoming.
March 11, 2009

National Atmospheric Deposition site near Gypsum Creek, Wyoming.

National Atmospheric Deposition site near Gypsum Creek, Wyoming.

Snowpack-sampling site on Lone Mountain at Big Sky ski resort, Montana
March 4, 2009

Snowpack-sampling site on Lone Mountain at Big Sky ski resort, Montana

Snowpack-sampling site on Lone Mountain at Big Sky ski resort, Montana

Buffalo on road to Canyon, Wyoming
February 18, 2009

Buffalo on road to Canyon, Wyoming

Buffalo on road to Canyon, Wyoming

Chalk Cliffs in the background showing view from video camera towards station 1.
December 31, 2008

Chalk Cliffs view of Station 1

View of the west channel and Upper monitoring station (Station 1), Chalk Cliffs, CO.

Picture of a mountain range  with hay field and forest in foreground
September 23, 2008

Mountain range with hay field and forest in foreground in Colorado

Mountain range in the background, forest and hay field in the foreground.  The picture was taken in Colorado during a field trip for the Land Cover Trends project.

Andrews Creek Weather Station, Loch Vale, RMNP, CO
September 15, 2008

Andrews Meadow Weather Station

Andrews Creek Weather Station, Loch Vale, Rocky Mountain National Park, Colorado

Andrews Meadow (401723105400101)

40o17'25" 105o39'57"

...
Measuring streamflow in Fish Creek with large Cladophora growth
August 21, 2008

Measuring streamflow in Fish Creek with large Cladophora growth

Measuring streamflow in Fish Creek with large Cladophora growth

The Needles District, Canyonlands National Park
June 30, 2008

The Needles District, Canyonlands National Park

The Needles District, Canyonlands National Park. 

The Needles District, Canyonlands National Park
June 30, 2008

The Needles District, Canyonlands National Park

The Needles District, Canyonlands National Park

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.