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: 5,333
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Year Published: 2020

Major hydrostratigraphic contacts of the Truxton basin and Hualapai Plateau, northwestern Arizona, developed from airborne electromagnetic data

The area surrounding the Grand Canyon has spectacular outcrop exposure in the modern canyon walls, leading to stratigraphic contact delineations that are well constrained near canyons yet poorly constrained where the terrain remains undissected and relatively unexplored by boreholes. An airborne electromagnetic and magnetic survey of the western...

Mason, Jon P.; Ball, Lyndsay B.
Ball, L.B., 2020, Major hydrostratigraphic contacts of the Truxton basin and Hualapai Plateau, northwestern Arizona, developed from airborne electromagnetic data, chap. D of Mason, J.P., ed., Geophysical surveys, hydrogeologic characterization, and groundwater flow model for the Truxton basin and Hualapai Plateau, northwestern Arizona: U.S. Geological Survey Scientific Investigations Report 2020–5017, 24 p., https://doi.org/10.3133/sir20205017D.

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Year Published: 2020

Probabilistic seismic hazard analysis at regional and national scale: State of the art and future challenges

Seismic hazard modelling is a multi-disciplinary science that aims to forecast earthquake occurrence and its resultant ground shaking. Such models consist of a probabilistic framework that quantifies uncertainty across a complex system; typically, this includes at least two model components developed from Earth science: seismic-source and ground-...

Gerstenberger, M. C.; Marzocchi, W.; Allen, T. J.; Pagani, M.; Adams, Janice; Danciu, L.; Field, Edward H.; Fujiwara, H.; Luco, Nicolas; Ma, K-F; Meletti, C.; Petersen, Mark D.

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Year Published: 2020

Climatically driven displacement on the Eglington fault, Las Vegas, Nevada

The Eglington fault is one of several intrabasinal faults in the Las Vegas Valley, Nevada and is the only one recognized as a source for significant earthquakes. Its broad warp displaces late Pleistocene paleo-spring deposits of the Las Vegas Formation, which record hydrologic fluctuations that occurred in response to millennial and submillennial-...

Springer, Kathleen B.; Pigati, Jeffrey S.

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Year Published: 2020

Pyrrhotite distribution in the conterminous United States, 2020

In parts of Connecticut and Massachusetts, foundations of some homes are cracking and crumbling. Failing foundations can reduce the market value of a home and lifting a house to replace and repour a foundation is an expensive undertaking. In response, some homeowners are defaulting on their mortgages and abandoning their homes. The...

Mauk, Jeffrey L.; Crafford, Thomas C.; Horton, John D.; San Juan, Carma A.; Robinson,, Gilpin R.
Mauk, J.L., Crafford, T.C., Horton, J.D., San Juan, C.A., and Robinson, G.R., Jr., 2020, Pyrrhotite distribution in the conterminous United States, 2020: U.S. Geological Survey Fact Sheet 2020-3017, 4 p., https://doi.org/10.3133/fs20203017.

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Year Published: 2020

Characterization of feed coals and coal combustion byproducts from the Wyodak-Anderson coal zone, Powder River Basin, Wyoming

The U.S. Geological Survey (USGS) determined the physical and chemical properties of more than 260 feed coal and coal combustion byproducts from two coal-fired power plants. These plants utilized a low-sulfur (0.23-0.47 wt. % S) and low ash (4.9-6.3 wt. % ash) subbituminous coal from the Wyodak-Anderson coal zone in the Tongue River Member of the...

Brownfield, Michael E.

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Year Published: 2020

Climate explorer: Improved access to local climate projections

The goal of the U.S. Climate Resilience Toolkit’s (CRT) Climate Explorer (CE) is to provide information at appropriate spatial and temporal scales to help practitioners gain insights into the risks posed by climate change. Ultimately, these insights can lead to groups of local stakeholders taking action to build their resilience to a changing...

Lipschultz, Fredric ; Herring, David ; Ray, Andrea J. ; Alder, Jay R.; Dahlman, LuAnn ; DeGaetano, Arthur ; Fox, James F. ; Gardiner, Edward ; Herring, Jamie; Hicks, Jeff ; Melton, Forrest; Morefield, Philip E. ; Sweet, William

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Year Published: 2020

Quantifying interregional flows of multiple ecosystem services – A case study for Germany

Despite a growing number of national-scale ecosystem service (ES) assessments, few studies consider the impacts of ES use and consumption beyond national or regional boundaries. Interregional ES flows – ecosystem services “imported” from and “exported” to other countries – are rarely analyzed and their importance for global sustainability is...

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

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Year Published: 2020

Geologic map of Petroglyph National Monument and vicinity, Bernalillo County, New Mexico

This geologic map depicts and briefly describes geologic units underlying Petroglyph National Monument and immediately adjacent areas in Bernalillo County, New Mexico. The Monument is underlain dominantly by Quaternary basalts of the Albuquerque Volcanoes volcanic field, a series of basin-filling volcanic flows and associated vents from a...

Thompson, Ren A.; Chan, Christine F.; Gilmer, Amy K.; Shroba, Ralph R.
Thompson, R.A., Chan, C.F., Gilmer, A.K., and Shroba, R.R., 2020, Geologic map of Petroglyph National Monument and vicinity, Bernalillo County, New Mexico: U.S. Geological Survey Scientific Investigations Map 3447, scale 1:24,000, https://doi.org/10.3133/sim3447.

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Year Published: 2020

Geochemical and mineralogical study of the Red Mountain porphyry copper-molybdenum deposit and vicinity, Santa Cruz County, Arizona

The Red Mountain porphyry copper-molybdenum deposit (Cu-Mo deposit or PCD) is located in the northern part of the Patagonia Mountains, Santa Cruz County, Arizona. Extensive core drilling has delineated a large, deep-seated, structurally intact mineral system that extends from the present surface to depths of more than 1,765 meters. This system is...

Chaffee, Maurice
Chaffee, M.A., 2020, Geochemical and mineralogical study of the Red Mountain porphyry copper-molybdenum deposit and vicinity, Santa Cruz County, Arizona: U.S. Geological Survey Scientific Investigations Report 2019–5077, 164 p., https://doi.org/10.3133/sir20195077.

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Year Published: 2020

Earthquakes, ShakeCast

ShakeCast® – short for ShakeMap Broadcast – is a fully automated software system for delivering specific ShakeMap products to critical users and for triggering established post-earthquake response protocols. ShakeCast is a freely available, postearthquake situational awareness software application that automatically retrieves earthquake shaking...

Lin, Kuo-wan; Wald, David J.; Slosky, Daniel

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Year Published: 2020

Map depicting susceptibility to landslides triggered by intense rainfall, Puerto Rico

Landslides in Puerto Rico range from nuisances to deadly events. Centuries of agricultural and urban modification of the landscape have perturbed many already unstable hillsides on the tropical island. One of the main triggers of mass wasting on the island is the high-intensity rainfall that is associated with tropical atmospheric systems. Puerto...

Hughes, K. Stephen; Schulz, William
Hughes, K.S., and Schulz, W.H., 2020, Map depicting susceptibility to landslides triggered by intense rainfall, Puerto Rico: U.S. Geological Survey Open-File Report 2020–1022, 91 p., 1 plate, scale 1:150,000, https://doi.org/10.3133/ofr20201022.

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Year Published: 2020

Probabilistic categorical groundwater salinity mapping from airborne electromagnetic data adjacent to California’s Lost Hills and Belridge oil fields

Growing water stress has led to emerging interest in protecting fresh and brackish groundwater as a potential supplement to water supplies and raised questions about factors that could affect the future quality of fresh and brackish aquifers. Limited well infrastructure, particularly in regions where elevated salinity has led to limited historical...

Ball, Lyndsay B.; Davis, Tracy; Minsley, Burke J.; Gillespie, Janice M.; Landon, Matthew K.

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: 525
Set up of Station 1 in Chalk Cliffs with view up-channel
June 1, 2009

Station 1

The Upper monitoring station at Chalk Cliffs, CO.

Well sampled to determine baseline pesticide concentrations in groundwater
May 11, 2009

Well sampled for baseline pesticide concentrations in groundwater

Well sampled to determine baseline pesticide concentrations in groundwater.

A hydrologist uses a meter to check groundwater parameters in a domestic supply well, with mountains in the background
April 21, 2009

Measuring water-quality parameters in a domestic-supply well

A hydrologic technician uses a meter to measure water-quality parameters, such as pH, dissolved oxygen, and specific conductance, in a domestic-supply well.

Moose on road to Lake Irene, Colorado
April 10, 2009

Moose on road to Lake Irene, Colorado

Moose on road to Lake Irene, Colorado

Snowpack-sampling pit near Fremont Pass, Colorado
April 6, 2009

Snowpack-sampling pit near Fremont Pass, Colorado

Snowpack-sampling pit near Fremont Pass, Colorado

Snow-density measurement in snowpack-sampling pit near Dunckley Pass, Colorado
April 3, 2009

Snow-density measurement near Dunckley Pass, Colorado

Snow-density measurement in snowpack-sampling pit near Dunckley Pass, Colorado

Snowpack-sampling pit near Dunckley Pass, Colorado
April 1, 2009

Snowpack-sampling pit near Dunckley Pass, Colorado

Snowpack-sampling pit near Dunckley Pass, Colo. Note discolored dust layers on left face (April 1, 2009).

Workers try to free snowmobile from deep snow near Buffalo Pass, CO
March 31, 2009

Workers try to free snowmobile from deep snow near Buffalo Pass, CO

Workers try to free snowmobile from deep snow near Buffalo Pass, CO

Typical, deep snowpack at sampling pit at Buffalo Pass, Colorado
March 31, 2009

Typical, deep snowpack at sampling pit at Buffalo Pass, Colorado

Typical, deep snowpack at sampling pit at Buffalo Pass, Colorado

National Atmospheric Deposition site near snowpack-sampling site at Brooklyn Lake, WY.
March 26, 2009

National Atmospheric Deposition site at Brooklyn Lake, WY

National Atmospheric Deposition site near snowpack-sampling site at Brooklyn Lake, WY.

Workers access site at Divide Peak, Wyoming via snowmobile.
March 25, 2009

Workers access site at Divide Peak, Wyoming via snowmobile.

Workers access site at Divide Peak, Wyoming via snowmobile.

Worker in snowpack-sampling pit at Old Battle, Wyoming
March 24, 2009

Worker in snowpack-sampling pit at Old Battle, Wyoming

Worker in snowpack-sampling pit at Old Battle, 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.