Unified Interior Regions

Arizona

The Southwest Region includes California, Nevada, and Arizona. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

States L2 Landing Page Tabs

Filter Total Items: 143
Date published: October 19, 2018
Status: Active

Conferences

International Planetary Caves Conference 

Date published: October 17, 2018
Status: Active

Planetary Caves

As USGS scientist and planetary cave enthusiast, Glen Cushing, points out, "Caves are important to the future of planetary exploration because they are believed to provide shelter from a range of harsh surface conditions, maintaining near-pristine surfaces and relatively stable microclimates." See links on this page to explore further.

Date published: October 10, 2018
Status: Active

Shoemaker Sample Collection

The USGS Shoemaker Collection consists of unique and irreplaceable geologic hand samples, rock powders, petrographic thin sections and billets, and associated documentation, from impact craters and terrestrial analog sites around the world. Current curation efforts are focused on data rescue, preservation, and inventory. All geologic materials are being relocated into...

Date published: October 1, 2018
Status: Active

NASA Planetary Cartography Planning

This page provides information on the history of planetary cartography research and program planning for NASA. This has been a community-based effort driven by the need to develop and maintain a cartographic capability in support of NASA missions of space exploration. To comment or add to this page please contact Brent Archinal (barchinal@...

Date published: October 1, 2018
Status: Completed

Planetary Spatial Infrastructure LPSC 2016

Planetary Spatial Infrastructure: At the Intersection Of GIScience and Planetary Science

Wednesday March 23rd 2016, 1:30 PM Waterway Ballroom 4

Chairs: 

  • Samuel Lawrence
  • Daniella DellaGiustina
Date published: October 1, 2018
Status: Active

LPSC 2013 Town Hall on Planetary Mapping and Cartography

What is planetary mapping? When do you need to do planetary mapping? How is planetary mapping accomplished? Why is planetary mapping important to you? Planetary mapping is literally foundational to planetary science and exploration. This town hall meeting is intended to present to the general planetary community the need to take planetary and lunar data and turn it into useful...

Date published: October 1, 2018
Status: Active

NASA/USGS Planetary Geologic Mapping Program

The Astrogeology Team at USGS provides coordination of NASA's planetary geologic mapping program. Geologic mapping investigations of any imaged planetary body (except Earth) are proposed to NASA's Planetary Geology and Geophysics Program on an annual basis (generally due sometime between late April and early June) and then...

Date published: October 1, 2018
Status: Active

ISPRS

ISPRS is an international NGO devoted to the development of international cooperations for the advancement of knowlege, research, development and education in the Protogrammetry, Remote Sensing and Spatial Information Sciences (P&RS&SIS), their integration and application, to contribute to the well bieng of hunanity and sustainability of the environment.

Date published: October 1, 2018
Status: Active

IAU - WGCCRE

The IAU Working Group on Cartographic Coordinates and Rotational Elements (WGCCRE) has been given the responsibility by the International Astronomical Union to define the rotational elements of the planets, satellites, asteroids, and comets of the solar system on a systematic basis and to relate their cartographic coordinates rigorously to the rotational elements.

In...

Date published: October 1, 2018
Status: Active

Mars Ice Consortium

The Mars Ice Consortium is a joint project between the USGS Astrogeology Research Program (Flagstaff, AZ) and the Arizona State University Mars Space Flight Facilty (Tempe, AZ) to bring together a single resource for the exploration of martian ices. Much of this research is done at the USGS Flagstaff Science Center.

Date published: October 1, 2018
Status: Active

Planetary Data Workshop

 Planetary Data: Workshops for Users and Software Developers 

Date published: September 28, 2018
Status: Active

The Annex of the PDS Cartography & Imaging Sciences Node

The Annex of the PDS Cartography and Imaging Sciences Node (aka “Imaging” or IMG) is a data repository designed to support the public delivery of NASA-funded geospatial data products derived from PDS image data. Examples of geospatial, derived products supported include global mosaics and thematic maps of...

Filter Total Items: 62
Date published: July 24, 2013

Data Entry Module for the Land Treatment Digital Library (LTDL)

This software allows agencies, organizations, and individuals to download an empty, stand-alone Land Treatment Digital Library database to individual or networked computers. Data entered in these databases may be submitted to the USGS for possible inclusion in the online Land Treatment Digital Library (https://ltdl.wr.usgs.gov).

Date published: June 11, 2010

Oil and Gas Well locations, Upper Colorado River Basin, 2007

This dataset was used as the basis for estimating land disturbance from oil and gas activity in the UCRB. The dataset is a compilation of five state oil and gas datasets from June of 2007. The intended uses of this data set include, but are not limited to, natural resource modeling, mapping, and visualization applications.

Filter Total Items: 134
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Year Published: 1996

Controlled Flooding of the Colorado River in Grand Canyon: the Rationale and Data-Collection Planned

Anderson, Mark T.; Graf, Julia B.; Marzolf, G. Richard
Controlled Flooding of the Colorado River in Grand Canyon: the Rationale and Data-Collection Planned; 1996; FS; 089-96; Anderson, Mark T.; Graf, Julia B.; Marzolf, G. Richard

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Year Published: 1996

Ground-water, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona, 1995

Littin, G.R.; Monroe, S.A.
Ground-water, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona, 1995; 1996; OFR; 96-616; Littin, G. R.; Monroe, S. A.

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Year Published: 1996

When the blue-green waters turn red: Historical flooding in Havasu Creek, Arizona

Havasu Creek, the second largest tributary of the Colorado River in Grand Canyon National Park, attracts numerous visitors each year owing to its spectacular scenery. Perennial streamflow seldom exceeds 2 cubic meters per second (m3/s), but supports important stands of riparian vegetation, forms unique travertine pools, and spills over spectacular...

Melis, Theodore S.; Phillips, William M.; Webb, Robert H.; Bills, Douglas J.
When the blue-green waters turn red: Historical flooding in Havasu Creek, Arizona; 1996; WRI; 96-4059; Melis, Theodore S.; Phillips, William M.; Webb, Robert H.; Bills, Douglas J.

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Year Published: 1996

Physical, chemical, biological, and toxicity data from the study of urban stormwater and ephemeral streams, Maricopa County, Arizona, water years 1992-95

Fossum, K.D.; Davis, R.G.
Physical, chemical, biological, and toxicity data from the study of urban stormwater and ephemeral streams, Maricopa County, Arizona, water years 1992-95; 1996; OFR; 96-394; Fossum, K. D.; Davis, R. G.

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Year Published: 1996

Hydrogeology of the Quitobaquito Springs and La Abra Plain area, Organ Pipe Cactus National Monument, Arizona, and Sonora, Mexico

Quitobaquito Springs, in Organ Pipe Cactus National Monument near the south end of the northwestward-trending Quitobaquito Hills, are less than 0.25 mile north of the international boundary between the United States and Mexico. The National Park Service is concerned that the natural flow from Quitobaquito Springs might be reduced by ground-water...

Carruth, R.L.
Hydrogeology of the Quitobaquito Springs and La Abra Plain area, Organ Pipe Cactus National Monument, Arizona, and Sonora, Mexico; 1996; WRI; 95-4295; Carruth, R. L.

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Year Published: 1996

An accounting system for water and consumptive use along the Colorado River, Hoover Dam to Mexico

An accounting system for estimating and distributing consumptive use of water by vegetation to water users was developed for the Colorado River to meet the requirements of a U.S. Supreme Court decree and used with data from calendar year 1984. The system is based on a water-budget method to estimate total consumptive use by vegetation which is...

Owen-Joyce, Sandra J.; Raymond, Lee H.
An accounting system for water and consumptive use along the Colorado River, Hoover Dam to Mexico; 1996; WSP; 2407; Owen-Joyce, Sandra J.; Raymond, Lee H.

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Year Published: 1996

Sand deposition in the Colorado River in the Grand Canyon from flooding of the Little Colorado River

Methods for computing the volume of sand deposited in the Colorado River in Grand Canyon National Park by floods in major tributaries and for determining redistribution of that sand by main-channel flows are required for successful management of sand-dependent riparian resources. We have derived flow, sediment transport, and bed evolution models...

Wiele, S.M.; Graf, J.B.; Smith, J.D.
Sand deposition in the Colorado River in the Grand Canyon from flooding of the Little Colorado River; 1996; Article; Journal; Water Resources Research; Wiele, S. M.; Graf, J. B.; Smith, J. D.

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Year Published: 1995

Chemistry and toxicity of urban sediments, Maricopa County, Arizona, data and summary statistics

Ingersoll, T.L.; Parker, J.T.; Fossum, K.D.
Chemistry and toxicity of urban sediments, Maricopa County, Arizona, data and summary statistics; 1995; OFR; 95-752; Ingersoll, T. L.; Parker, J. T.; Fossum, K. D.

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Year Published: 1995

Results of ground-water, surface-water, and water-chemistry monitoring, Black Mesa area, northeastern Arizona, 1994

The Black Mesa monitoring program is designed to document long-term effects of ground-water pumping from the N aquifer by industrial and municipal users. The N aquifer is the major source of water in the 5,400-square-mile Black Mesa area, and the ground water occurs under confined and unconfined conditions. Monitoring activities include continuous...

Littin, G.R.; Monroe, S.A.
Results of ground-water, surface-water, and water-chemistry monitoring, Black Mesa area, northeastern Arizona, 1994; 1995; WRI; 95-4238; Littin, G. R.; Monroe, S. A.

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Year Published: 1995

Sand-storage changes in the Colorado River downstream from the Paria and Little Colorado Rivers, June 1992 to February 1994

Graf, J.B.; Marlow, J.E.; Fisk, G.G.; Jansen, S.M.
Sand-storage changes in the Colorado River downstream from the Paria and Little Colorado Rivers, June 1992 to February 1994; 1995; OFR; 95-446; Graf, J. B.; Marlow, J. E.; Fisk, G. G.; Jansen, S. M.

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Year Published: 1995

Results of ground-water, surface-water, and water-quality monitoring, Black Mesa area, northeastern Arizona, 1992-93

No abstract available. 

Littin, G.R.; Monroe, S.A.
Results of ground-water, surface-water, and water-quality monitoring, Black Mesa area, northeastern Arizona, 1992-93; 1995; WRI; 95-4156; Littin, G. R.; Monroe, S. A.

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Year Published: 1995

Hydrogeology and deformation of sandbars in response to fluctuations in flow of the Colorado River in the Grand Canyon, Arizona

Rill erosion, slumping, and fissuring develop on seepage faces of many sandbars along the Colorado River in the Grand Canyon. These processes, observed at low river stage, are a response to residual head gradients in the sandbars caused by the river-stage fluctuation. Three sandbars were instrumented with sensors for continual monitoring of pore...

Carpenter, M.C.; Carruth, R.L.; Fink, J.B.; Boling, J.K.; Cluer, B.L.
Hydrogeology and deformation of sandbars in response to fluctuations in flow of the Colorado River in the Grand Canyon, Arizona; 1995; WRI; 95-4010; Carpenter, M. C.; Carruth, R. L.; Fink. J. B.; Boling, J. K.; Cluer, B. L.

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Photo of structure which blocks about 35% of rainfall
April 17, 2018

Rainout shelters allow researchers to study effects of drought

Rainout shelters block about 35% of natural rainfall, allowing researchers to study the effects of drought on plants in the arid and semiarid southwestern United States. 

photo of structure which blocks rainfall
April 17, 2018

Rainout structures allow researchers to study the effects of drought

This rainout structure blocks about 35% of the natural rainfall, allowing researchers to study the effects of drought on plants in the southwestern United States.

Two men stand in a grassland beneath a sky filled with fluffy cumulus clouds and a blue sky.
March 31, 2018

Standing in the field with managers

Touring public lands, guided by the people who manage the lands, is a important to RAMPS. On these tours we get to meet the passionate people, understand their challenges and aspirations, and help make steps towards innovative science-based solutions. In this photo staff from BLM's Aqua Fria National Monument stand with USGS scientist, Seth Munson and discuss how to

...
View of the sonoran desert at Organ Pipe Cactus National Monument showing an organ pipe cactus and mountains of Mexico
February 28, 2018

Organ Pipe Cactus National Monument

Organ pipe cactus are rare in the Sonoran desert in the U.S. They can only be found in and around Organ Pipe Cactus National Monument, shown here. The distribution of Organ Pipe Cactus is limited due to lack of tolerance for cold temperatures. The biota of the Sonoran desert is particularly senstive to disturbance. Soils often erode quickly once vegetation is removed. The

...
Pink Sand Dunes in Utah
February 27, 2018

Pink Dune

This is a photo of a pink sand dune in Utah.

USGS hydrographer collecting a suspended-sediment water sample from the highly turbid Little Colorado River in the Grand Canyon.
February 26, 2018

USGS hydrographer collecting a suspended-sediment water sample.

Suspended-Sediment Sampling and Turbidity

Here, a U.S. Geological Survey (USGS) hydrographer is collecting a suspended-sediment water sample from the Little Colorado River, a kilometer upstream from the Colorado River, Grand Canyon, Arizona, USA. To gain knowledge of the

...
February 22, 2018

Ungulates in a Warmer Climate

Researchers supported by NCCWSC are working to improve managers’ understanding of ungulates’ response to a warmer climate. For example, when surface water is unavailable, the water content within ungulates’ food provides them with their main source of water, and they must make resourceful foraging decisions to meet their water needs. Scientists researching desert bighorn

Lake Powell
December 31, 2017

Lake Powell

The USGS Utah Water Science Center and the Woods Hole Coastal and Marine Science Center conducted a collaborative geophysical research effort within Lake Powell, UT-AZ to map the bathymetry of the lake and characterize shallow sediment deposition near the mouths of the San Juan and Colorado Rivers.

A discussion group looks at notes on a large easel pad
December 31, 2017

Collaborative Discussion

The USGS RAMPS program hosts workshops where land managers from federal, state, and local agencies, practitioners, and NGO's can come together to discuss challenges and develop creative solutions. Here,

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Close-up of dried, cracked soil with small plants trying to survive in this soil.
December 31, 2017

Dry, cracked soil (RAMPS)

Rangelands of the desert Southwest can be in a degraded condition and lacking perennial vegetation, which can lead to exposed soil and erosion. RAMPS is working to mitigate degradation by increasing 

...
Digital elevation model created by an Unmanned Aerial System
December 31, 2017

Digital Elevation Model Created by an Unmanned Aerial System

This digital elevation model was created using structure from motion software mounted to an Unmanned Aerial System (UAS) to analyze bridge scour. Studies using UAS have included stream temperature analyses, bird and mammal surveys, coastal change mapping, sandbar habitat surveys, fluvial erosion rates, microclimate mapping, air quality analysis, plant stress assessment,

...
Unmanned Aerial System prior to takeoff
December 31, 2017

Unmanned Aerial System

This small unmanned aerial system with digital camera has been used to create digital elevation models to answer questions about erosion, bridge scour, and other hydraulics analyses. 

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Photograph showing San Pedro Riparian National Conservation Area.
August 18, 2016

Streamflow and groundwater levels are declining in some locations along the San Pedro River near Sierra Vista, Arizona, according to a new report by the U.S. Geological Survey.

Photo of the Colorado River near Moab, Utah
August 15, 2016

Future groundwater replenishment in the Upper Colorado River Basin may benefit from projected increases in future basin-wide precipitation under current climate projections, according to a recent study by the U.S. Geological Survey and Bureau of Reclamation.

Four numbered sample jars containing brownish water and small snails in a laboratory connected to tubes and electronic meter.
August 4, 2016

To gain insights into the risks associated with uranium mining and processing, U.S. Geological Survey scientists are investigating how uranium moves into and up food chains.

USGS
May 25, 2016

Laura Norman was asked to provide a presentation at the Hassayampa River Study meeting. Stakeholders in the 3,700 km² watershed are interested in the benefits of hydrologic modeling to assess if stormwater management practices would impact stormflows, sedimentation, and groundwater recharge.

An image of Hi'iaka Montes and Hi'iaka Patera on Jupiter's volcanic moon Io.
May 19, 2016

Mountains on Io, Jupiter’s volcanic moon, are formed by a unique geologic mechanism not found elsewhere in the solar system, according to a new study by the U.S. Geological Survey.

Topographic Map of Mercury
May 6, 2016

The first topographic map of Mercury was released today by the U.S. Geological Survey, Arizona State University, Carnegie Institute of Washington, Johns Hopkins University Applied Physics Laboratory and NASA.

People collecting aquatic insects at night along the Colorado River.
May 2, 2016

Alternative Flows Might Mitigate Negative Impacts

Planned US Topo map production schedule for the next three- year revision cycle
November 19, 2015

With the release of new US Topo maps for Illinois and South Dakota, the USGS has completed the second, three-year cycle of revising and updating electronic US Topo quadrangles. This means that since late 2009, the USGS has published nearly every map in the conterminous U.S., twice.

USGS science for a changing world logo
November 3, 2015

On average, streams in the Niobrara-Mowry Play of eastern Wyoming, Fayetteville Play of Arkansas, and Barnett Play of Texas ranked most vulnerable to unconventional oil and gas development, but for different reasons, according to recent U.S. Geological Survey coauthored research.

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