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 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: 5,110
Publication Thumbnail
Year Published: 2019

Near-field remote sensing of Alaskan Rivers

The U.S. Geological Survey (USGS) Geomorphology and Sediment Transport Laboratory (GSTL), in collaboration with the U.S. Army Corps of Engineers Cold Regions Research and Engineering Laboratory (CRREL), acquired remotely sensed data from several Alaskan rivers in 2017 and 2018 with the goal of developing a methodology for measuring streamflow from...

Kinzel, Paul J.; Legleiter, Carl J.; Nelson, Jonathan M.; Conaway, Jeff; LeWinter, Adam; Gadomski, Peter; Filiano, Dominic

Publication Thumbnail
Year Published: 2019

Seismic design and hazard maps: Before and after

The 1994 Northridge earthquake generated world-record ground motions. At the time, the horizontal peak ground acceleration of 1.8 g measured by a seismometer in Tarzana was the largest ever. The same is true of the peak ground velocity of 148 cm/s measured in Granada Hills. Both measurements were within approximately 15 km of the source...

Luco, Nicolas

Publication Thumbnail
Year Published: 2019

Differentiating anthropogenic and natural sources of uranium by geochemical fingerprinting of groundwater at the Homestake Uranium Mill, Milan, New Mexico, USA

A multiparameter geochemical-isotopic fingerprinting approach was used to differentiate natural and anthropogenic signatures of uranium contamination near the Homestake uranium mill site (Site), near Milan, New Mexico, USA. The Site consists of two tailings piles from milling operations and groundwater contamination from these tailings have been...

Blake, Johanna; Harte, Philip; Becher, Kent

Publication Thumbnail
Year Published: 2019

Groundwater quality and hydrology with emphasis on selenium mobilization and transport in the Lower Gunnison River Basin, Colorado, 2012–16

Dissolved selenium is a contaminant of concern in the lower Gunnison River Basin, Colorado. Selenium is naturally present in the Cretaceous Mancos Shale and is leached to groundwater and surface water by irrigation. The groundwater on the east side of the Uncompahgre River in Delta and Montrose Counties is one of the primary sources of selenium...

Thomas, Judith C.; McMahon, Peter B.; Arnold, L. R.
Thomas, J.C., McMahon, P.B., and Arnold, L.R., 2019, Groundwater quality and hydrology with emphasis on selenium mobilization and transport in the lower Gunnison River Basin, Colorado, 2012–16: U.S. Geological Survey Scientific Investigations Report 2019–5029, 69 p., https://doi.org/10.3133/sir20195029.

Publication Thumbnail
Year Published: 2019

The presence of antibiotic resistance genes in coastal soil and sediment samples from the eastern seaboard of the USA

Infections from antibiotic resistant microorganisms are considered to be one of the greatest global public health challenges that result in huge annual economic losses. While genes that impart resistance to antibiotics (AbR) existed long before the discovery and use of antibiotics, anthropogenic uses of antibiotics in agriculture, domesticated...

Griffin, Dale W.; Benzel, William M.; Fisher, Shawn C.; Focazio, Michael J.; Iwanowicz, Luke R.; Loftin, Keith A.; Reilly, Timothy J.; Jones, Daniel K.

Publication Thumbnail
Year Published: 2019

The antiquity of the Sahara Desert: New evidence from the mineralogy and geochemistry of Pliocene paleosols on the Canary Islands, Spain

The Sahara is the largest warm desert in the world, but its age has been controversial, with estimates ranging from Miocene to Holocene. Mineralogical and geochemical data show that paleosols of Pliocene to mid-Pleistocene age on Fuerteventura and Gran Canaria in the Canary Islands have developed in part from inputs of dust from Africa. These...

Muhs, Daniel R.; Meco, Joaquin; Budahn, James R.; Skipp, Gary L.; Betancort, Juan F.; Lomoschitz, Alejandro

Publication Thumbnail
Year Published: 2019

Sand Creek characterization study for Oncorhynchus clarkii virginalis (Rio Grande Cutthroat Trout), Great Sand Dunes National Park and Preserve, Colorado

The Oncorhynchus clarkii virginalis (Rio Grande cutthroat trout, RGCT) has undergone extensive declines in distribution and population. The RGCT is the southernmost distributed subspecies of cutthroat trout. Native to the Rio Grande Basin in Colorado and New Mexico, the subspecies is also found in the headwaters of the Pecos River and Canadian...

Mcgee, Ben N.; Todd, Andrew S.; Kevin K. Terry
McGee, B.N., Todd, A.S., and Terry, K.A., 2019, Sand Creek characterization study for Oncorhynchus clarkii virginalis (Rio Grande cutthroat trout), Great Sand Dunes National Park and Preserve, Colorado: U.S. Geological Survey Scientific Investigations Report 2019–5061, 38 p., https://doi.org/10.3133/sir20195061.

Publication Thumbnail
Year Published: 2019

Hydrocarbons in upland groundwater, Marcellus Shale Region, Northeastern Pennsylvania and Southern New York, USA

Water samples from 50 domestic wells located <1 km (proximal) and >1 km (distal) from shale-gas wells in upland areas of the Marcellus Shale region were analyzed for chemical, isotopic, and groundwater-age tracers. Uplands were targeted because natural mixing with brine and hydrocarbons from deep formations is less common in those areas...

McMahon, Peter B.; Lindsey, Bruce D.; Conlon, Matthew D.; Hunt, Andrew G.; Belitz, Kenneth; Jurgens, Bryant; Varela, Brian

Publication Thumbnail
Year Published: 2019

Petrologic and mineral physics database for use with the U.S. Geological Survey National Crustal Model

We present a petrologic and mineral physics database as part of the U.S. Geological Survey National Crustal Model (NCM). Each of 209 geologic units, 134 of which are currently part of the geologic framework within the NCM, was assigned a mineralogical composition according to generalized classifications with some refinement for specific geologic...

Sowers, Theron; Boyd, Oliver S.
Sowers, T., and Boyd, O.S., 2019, Petrologic and mineral physics database for use with the U.S. Geological Survey National Crustal Model: U.S. Geological Survey Open-File Report 2019–1035, 17 p.,https://doi.org/10.3133/ofr20191035.

Publication Thumbnail
Year Published: 2019

Groundwater-level change for the periods 2002–8, 2008–12, and 2008–16 in the Santa Fe Group aquifer system in the Albuquerque area, central New Mexico

The U.S. Geological Survey, in cooperation with the Albuquerque Bernalillo County Water Utility Authority (ABCWUA), has developed a series of maps and associated reports, beginning in 2002, that document groundwater levels in the production zone of the Santa Fe Group aquifer system beneath a large area of the City of Albuquerque, New Mexico (...

Ritchie, Andre B.; Galanter, Amy E.; Curry, Lucas T.S.
Ritchie, A.B., Galanter, A.E., and Curry, L.T.S., Groundwater-level change for the periods 2002–8, 2008–12, and 2008–16 in the Santa Fe Group aquifer system in the Albuquerque area, central New Mexico: U.S. Geological Survey Scientific Investigations Map 3435, 1 sheet, pamphlet, https://doi.org/10.3133/sim3435.

Publication Thumbnail
Year Published: 2019

Assessment of shale-oil resources of the Sirte Basin Province, Libya, 2019

Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 23.7 billion barrels of shale oil and 23 trillion cubic feet of associated gas in the onshore part of the Sirte Basin Province of Libya.

Schenk, Christopher J.; Mercier, Tracey J.; Woodall, Cheryl A.; Le, Phuong A.; Pitman, Janet K.; Drake, Ronald M.; Brownfield, Michael E.; Gaswirth, Stephanie B.; Finn, Thomas M.
Schenk, C.J., Mercier, T.J., Woodall, C.A., Le, P.A., Pitman, J.K., Drake, R.M., II, Brownfield, M.E., Gaswirth, S.B., and Finn, T.M., 2019, Assessment of shale-oil resources of the Sirte Basin Province, Libya, 2019: U.S. Geological Survey Fact Sheet 2019–3028, 2 p., https://doi.org/10.3133/fs20193028.

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
False-colored-composite satellite image, Great Salt Lake, Sept 1987
September 29, 1987

False-colored-composite satellite image, Great Salt Lake, Sept 1987

This is a false-colored-composite satellite image of the Great Salt Lake, taken in Sept, 1987. Vegetation appears red.

False-colored-composite satellite image, Great Salt Lake, Sept 1972
September 13, 1972

False-colored-composite satellite image, Great Salt Lake, Sept 1972

This is a false-colored-composite satellite image of Great Salt Lake, Sept 1972. The vegetation appears red.

rockslide
December 31, 1959

Rockslide damage to the Golden Gate area near Mammoth Hot Springs

Rockslide damage to the Golden Gate area near Mammoth Hot Springs, Yellowstone National Park, as a result of the 1959 Hebgen Lake earthquake.

Sapphire Pool erupting
December 31, 1959

Sapphire Pool, in the Upper Geyser Basin, erupting after the 1959 Hebg

Sapphire Pool, in the Upper Geyser Basin, erupting after the 1959 Hebgen Lake earthquake.

old-fashioned black and white photo of erupting geyser, and people standing around looking at it
December 31, 1878

Old Faithful Geyser erupting, c.1878

Old Faithful Geyser in Upper Geyser Basin. 1878(?). Yellowstone National Park, Wyoming. U.S. Geological and Geographical Survey of the Territories (Hayden Survey).

Three men posed under a canvas tent
October 31, 1868

Clarence King in camp, Salt Lake City, Utah

Clarence King in camp, Salt Lake City, Utah. United StatesGeological Exploration of the Fortieth Parallel (King Survey). 1868. Plate 96: Clarence King in camp, near Salt Lake City, Utah. October 1868.
(Photo by T.H. O'Sullivan.) 

Image: USGS Researcher at Mesa Alta, New Mexico

USGS Researcher at Mesa Alta, New Mexico

USGS researcher Craig Allen stands on the edge of Mesa Alta, amid diverse forest and woodland in the uplands of northern New Mexico; note some recently dead ponderosa pine and Douglas-fir in the field of view. Forest drought stress is strongly correlated with tree mortality from poor growth, bark beetle outbreaks, and high-severity fire.

Image: Elk in Northwestern Wyoming

Elk in Northwestern Wyoming

Elk congregate on the Camp Creek Feed Ground in northwestern Wyoming.

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.