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

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: 387
Date published: May 22, 1997
Status: Active

Groundwater-Level Monitoring in Middle Rio Grande Basin Piezometers

In 1996, the U.S. Geological Survey, in cooperation with the New Mexico Office of the State Engineer and the Albuquerque Bernallilo County Water Utility Authority, began a drilling program to install specialized monitoring wells in the Middle Rio Grande Basin. The purpose of the program is to monitor hydraulic head at specific depths in the aquifer (fig. 1). Most of these specialized wells,...

Contacts: Joseph E Beman
Date published: May 22, 1997
Status: Active

Middle Rio Grande Piezometer network

In 1996, the U.S. Geological Survey, in cooperation with the New Mexico Office of the State Engineer and the Albuquerque Bernallilo County Water Utility Authority, began a drilling program to install specialized monitoring wells in the Middle Rio Grande Basin. The purpose of the program is to monitor hydraulic head at specific depths in the aquifer (fig 1). Most of these specialized wells,...

Contacts: Joseph E Beman
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: 5,268
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Year Published: 2020

Evidence for late Quaternary deformation along Crowley's Ridge, New Madrid seismic zone

The New Madrid seismic zone has been the source of multiple major (M ~7.0–7.5) earthquakes in the past 2 ka, yet the surface expression of recent deformation remains ambiguous. Crowleys Ridge, a linear ridge trending north‐south for 300+ km through the Mississippi Embayment, has been interpreted as either a fault‐bounded uplift or a nontectonic...

Thompson Jobe, Jessica; Gold, Ryan D.; Briggs, Richard W.; Williams, Robert; Stephenson, William J.; Delano, Jaime E.; Shah, Anjana K.; Minsley, Burke J.

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Year Published: 2020

Geodetic measurements of slow slip events southeast of Parkfield, CA

Tremor and low-frequency earthquakes are presumed to be indicative of surrounding slow, aseismic slip that is often below geodetic detection thresholds. This study uses data from borehole seismometers and long-baseline laser strainmeters to observe both the seismic and geodetic signatures of episodic tremor and slip on the Parkfield region of the...

Delbridge, Brent G.; Carmichael, Joshua D.; Nadeau, Robert M.; Shelly, David R.; Burgmann, Roland

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Year Published: 2020

Operational earthquake forecasting during the 2019 Ridgecrest, California, earthquake sequence with the UCERF3-ETAS model

The first Uniform California Earthquake Rupture Forecast, Version 3–epidemic‐type aftershock sequence (UCERF3‐ETAS) aftershock simulations were running on a high‐performance computing cluster within 33 min of the 4 July 2019 M 6.4 Searles Valley earthquake. UCERF3‐ETAS, an extension of the third Uniform California Earthquake Rupture Forecast (...

Milner, Kevin R.; Field, Edward H.; Savran, William H; Page, Morgan T.; Jordan, Thomas H

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Year Published: 2020

Testing glacial isostatic adjustment models of last-interglacial sea level history in the Bahamas and Bermuda

Part of the spatial variation in the apparent sea-level record of the last interglacial (LIG) period is due to the diverse response of coastlines to glacial isostatic adjustment (GIA) processes, particularly where coastlines were close to the Laurentide Ice Sheet during the past two glacial periods. We tested modeled LIG paleo-sea levels on New...

Muhs, Daniel R.; Simmons, Kathleen R.; Schumann, R. Randall; Schweig, Eugene S.; Rowe, Mark P.

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Year Published: 2020

Evaluation of soil zone processes and a novel radiocarbon correction approach for groundwater with mixed sources

Estimates of groundwater age based on 14C is often limited by the uncertainty in geochemical processes that alter the 14C concentration measured in water and the composition (δ13C and 14C) of carbon sources needed to appropriately parametrize 14C adjustment models. Estimated ages for samples that contain a mixture of young and old groundwater will...

Solder, John E.; Jurgens, Bryant

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Year Published: 2020

Runoff sensitivity to snow depletion curve representation within a continental scale hydrologic model

The spatial variability of snow water equivalent (SWE) can exert a strong influence on the timing and magnitude of snowmelt delivery to a watershed. Therefore, the representation of subgrid or subwatershed snow variability in hydrologic models is important for accurately simulating snowmelt dynamics and runoff response. The U.S. Geological Survey...

Sexstone, Graham A.; Driscoll, Jessica M.; Hay, Lauren; Hammond, John; Barnhart, Theodore B.

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Year Published: 2020

A machine learning approach to developing ground motion models from simulated ground motions

We use a machine learning approach to build a ground motion model (GMM) from a synthetic database of ground motions extracted from the Southern California CyberShake study. An artificial neural network is used to find the optimal weights that best fit the target data (without overfitting), with input parameters chosen to match that of state-of-the...

Withers, Kyle; Moschetti, Morgan P.; Thompson, Eric M.

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Year Published: 2020

Assessment of soil and water resources in the Organ Mountains-Desert Peaks National Monument, New Mexico

The Organ Mountains-Desert Peaks National Monument (Monument) in southern New Mexico was established in 2014. Given anticipated future demands in the Monument for recreation, livestock grazing, and maintenance of rights-of-way (for example, pipelines and powerlines), the Bureau of Land Management (BLM) needs a better understanding of the current...

Blake, Johanna M.; Mitchell, Aurelia C.; Shephard, Zachary; Ball, Grady; Chavarria, Shaleene; Douglas-Mankin, Kyle R.
Blake, J.M., Mitchell, A.C., Shephard, Z., Ball, G., Chavarria, S., and Douglas-Mankin, K.R., 2020, Assessment of soil and water resources in the Organ Mountains-Desert Peaks National Monument, New Mexico: U.S. Geological Survey Scientific Investigations Report 2019–5142, 64 p., https://doi.org/10.3133/sir20195142.

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Year Published: 2020

Relating hydroclimatic change to streamflow, baseflow, and hydrologic partitioning in the Upper Rio Grande Basin, 1980 to 2015

Understanding how changing climatic conditions affect streamflow volume and timing is critical for effective water management. In the Rio Grande Basin of the southwest U.S., decreasing snowpack, increasing minimum temperatures, and decreasing streamflow have been observed in recent decades, but the effects of hydroclimatic changes on baseflow, or...

Rumsey, Christine; Miller, Matthew; Sexstone, Graham A.

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Year Published: 2020

Structural control on megathrust rupture and slip behavior: Insights from the 2016 Mw 7.8 Pedernales Ecuador earthquake

The heterogeneous seafloor topography of the Nazca Plate as it enters the Ecuador subduction zone provides an opportunity to document the influence of seafloor roughness on slip behavior and megathrust rupture. The 2016 Mw 7.8 Pedernales Ecuador earthquake was followed by a rich and active postseismic sequence. An internationally coordinated rapid...

Soto-Cordero, Lillian; Meltzer, Anne; Bergman, Eric A.; Hoskins, Mariah; Stachnik, Joshua C.; Agurto-Detzel, Hans; Alvarado, Alexandra; Beck, Susan L.; Charvis, Philippe; Font, Yvonne; Hayes, Gavin P.; Hernandez, Stephen; Leon-Rios, Sergio; Lynner, Colton; Nocquet, Jean-Mathieu; Regnier, Marc; Rietbrock, Andreas; Rolandone, Frederique; Ruiz, Mario

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Year Published: 2020

Mapping forested wetland inundation in the Delmarva Peninsula, USA: Use of deep learning model

The Delmarva Peninsula in the eastern United States is dominated by thousands of small, forested depressional wetlands that are highly sensitive to climate change and climate variability but provide critical ecosystem services. Due to the relatively small size of these depressional wetlands and occurrence under forest canopy cover, it is very...

Du, Ling; McCarty, Greg W.; Zhang, Xinhow; Lang, Megan W.; Vanderhoof, Melanie K.; Lin, Xian-Dan; Huang, Chengquan; Lee, Sangchul; Zou, Zhenhua

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Year Published: 2020

The 2019 Ridgecrest, California, earthquake sequence ground motions: Processed records and derived intensity metrics

Following the 2019 Ridgecrest, California, earthquake sequence, we compiled ground‐motion records from multiple data centers and processed these records using newly developed ground‐motion processing software that performs quality assurance checks, performs standard time series processing steps, and computes a wide range of ground‐motion metrics....

Rekoske, John; Thompson, Eric M.; Moschetti, Morgan P.; Hearne, Mike; Aagaard, Brad T.; Parker, Grace Alexandra

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: 522
View from sandstone bluff overlooking extinct lava flows at El Malpais National Monument, New Mexico.
December 31, 2011

View from sandstone bluff overlooking extinct lava flows at El Malpais

View from sandstone bluff overlooking extinct lava flows at El Malpais National Monument, New Mexico.

Elk in Beartooth Mountains, WY
December 31, 2011

Elk in Beartooth Mountains, WY

Elk in the Beartooth Mountains, Wyoming. The USGS and partners study the effects of climate change on the Greater Yellowstone Ecosystem. 

Sunset at the uranium mines at the Grand Canyon, NM.
December 31, 2011

Sunset at the uranium mines at the Grand Canyon, NM.

Sunset at the uranium mines at the Grand Canyon, NM. 

November 17, 2011

PubTalk 11/2011 — Colorado River High-Flow Experiments

- a story of Grand Canyon geology, water, and biology

by Jack Schmidt & David Rubin

 

  • New insights from recent Glen Canyon Dam high-flow experiments on the Colorado River
  • Are these high flows doing more than building large sand bars in Grand Canyon National Park?
  • The challenge of adaptively managing
False-color-composite satellite image of Great Salt Lake, Nov 2011
November 2, 2011

Great Salt Lake

This is a false-color-composite satellite image of Great Salt Lake, Nov 2011. The vegetation appears red.

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.

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.