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Images

Images 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 10:  California-Great Basin. A search tool is provided to narrow the number of image files shown.

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Map of U.S. mainland showing temperate, transitional and tropical temperature patterns
U.S. regions in the tropical-to-temperate transition
U.S. regions in the tropical-to-temperate transition
U.S. regions in the tropical-to-temperate transition

A map showing North America's tropical-to-temperate transition zone. Red, orange, and yellow depict the more tropical zones, and blues depict the more temperate zones, based on to the coldest recorded temperature for each area between 1980 and 2009.

A map showing North America's tropical-to-temperate transition zone. Red, orange, and yellow depict the more tropical zones, and blues depict the more temperate zones, based on to the coldest recorded temperature for each area between 1980 and 2009.

UAS Research Center's BisonCore in use onboard a small autonomous rover named Sandy
BisonCore’s Collision Detection Avoidance Algorithms safely keep the vehicle from running into obstacles
BisonCore’s Collision Detection Avoidance Algorithms safely keep the vehicle from running into obstacles
BisonCore’s Collision Detection Avoidance Algorithms safely keep the vehicle from running into obstacles

UAS Research Center's BisonCore Project, augments an autonomous rover to avoid running into obstacles. Shown in picture; user set waypoint (2) that runs over a curb/barrier. CDA engaged and navigated south avoiding, and seeking a path around, the curb.

UAS Research Center's BisonCore Project, augments an autonomous rover to avoid running into obstacles. Shown in picture; user set waypoint (2) that runs over a curb/barrier. CDA engaged and navigated south avoiding, and seeking a path around, the curb.

A school of snook, large subtropical game fish, in a Florida spring
Subtropical snook gather at a warm Florida springhead in winter
Subtropical snook gather at a warm Florida springhead in winter
Subtropical snook gather at a warm Florida springhead in winter

 Winter temperature extremes control the distributions of subtropical fishes. Common snook (Centropomus undecimalis), aggregate at a spring in northern Florida during winter. Snook are warm saltwater game fish, common in Florida, that have been moving further northward as extreme cold spells become less frequent and less intense.

 Winter temperature extremes control the distributions of subtropical fishes. Common snook (Centropomus undecimalis), aggregate at a spring in northern Florida during winter. Snook are warm saltwater game fish, common in Florida, that have been moving further northward as extreme cold spells become less frequent and less intense.

A woman stands in a rut eroded by water, on a very steep hill surrounded by burned trees.
Burned, denuded hillside in the CZU Lightning Complex
Burned, denuded hillside in the CZU Lightning Complex
Burned, denuded hillside in the CZU Lightning Complex

The USGS landslide team monitors and continues to update the hazard map models based on data collected in burn areas. This information improves future models and provides better hazard assessments used by officials for emergency response and decision making. Many of the steep hillsides burned and denuded in California fires repel water rather than soak it in.

The USGS landslide team monitors and continues to update the hazard map models based on data collected in burn areas. This information improves future models and provides better hazard assessments used by officials for emergency response and decision making. Many of the steep hillsides burned and denuded in California fires repel water rather than soak it in.

a fish is held flat with two hands over a wooden board with a measuring tape.
Adult Lahontan cutthroat trout
Adult Lahontan cutthroat trout
Adult Lahontan cutthroat trout

Lahontan cutthroat trout (Oncorhynchus clarkii henshawi) is a federally listed threatened species. Ninety-seven percent of their range are small headwater streams in the Great Basin of North America.

Lahontan cutthroat trout (Oncorhynchus clarkii henshawi) is a federally listed threatened species. Ninety-seven percent of their range are small headwater streams in the Great Basin of North America.

UAS Research Center's BisonCore equipment marker showing a circuit bison head with ‘BISON CORE’ beside it.
BisonCore project equipment identifying marker
BisonCore project equipment identifying marker
BisonCore project equipment identifying marker

USGS National Innovation Center's UAS Research Center BisonCore Project Equipment Identifying Marker

USGS National Innovation Center's UAS Research Center BisonCore Project Equipment Identifying Marker

wind turbines in a dessert landscape
Wind turbines in California
Wind turbines in California
Wind turbines in California

Wind turbines at the San Gorgonio Pass Wind Resource Area north of Palm Springs in California.

Wind turbines at the San Gorgonio Pass Wind Resource Area north of Palm Springs in California.

People wading in knee-high water
Dragonfly Mercury Project specimen collection in Glacier NP
Dragonfly Mercury Project specimen collection in Glacier NP
Dragonfly Mercury Project specimen collection in Glacier NP

Researchers instruct volunteers on how to collect dragonfly larvae in Glacier NP as a part of the Dragonfly Mercury Project.

Researchers instruct volunteers on how to collect dragonfly larvae in Glacier NP as a part of the Dragonfly Mercury Project.

Home mostly covered by a debris flow in southern California
Debris flow after the 2003 Old Gran Prix fire
Debris flow after the 2003 Old Gran Prix fire
Debris flow after the 2003 Old Gran Prix fire

Damage from a major post-wildfire landslide that occurred on 25 December 2003 near Devore, San Bernardino County as a result of the Old/Grand Prix fires that ran through the San Bernardino Mountains.

Damage from a major post-wildfire landslide that occurred on 25 December 2003 near Devore, San Bernardino County as a result of the Old/Grand Prix fires that ran through the San Bernardino Mountains.

Home damaged by post fire debris flow
Home damaged by post-wildfire debris flow in Montecito, CA.
Home damaged by post-wildfire debris flow in Montecito, CA.
Home damaged by post-wildfire debris flow in Montecito, CA.

Damage from a major post-wildfire landslide that occurred on 9 January 2018 near Montecito, Santa Barbara County as a result of the 2017 Thomas Fire.

Damage from a major post-wildfire landslide that occurred on 9 January 2018 near Montecito, Santa Barbara County as a result of the 2017 Thomas Fire.

This is the gage house on the Williamson River, USGS site 11502500.
Williamson River below the Sprague River in Chiloquin, OR.
Williamson River below the Sprague River in Chiloquin, OR.
Williamson River below the Sprague River in Chiloquin, OR.

This is a view of a USGS surface water stream gage that contains equipment to monitor discharge at the Williamson River below the Sprague Ruver in Chiloquin, Oregon. The gage house contains a historic stilling well and a device that records the level of water. It also has a water temerature sensor and a turbidimeter.

This is a view of a USGS surface water stream gage that contains equipment to monitor discharge at the Williamson River below the Sprague Ruver in Chiloquin, Oregon. The gage house contains a historic stilling well and a device that records the level of water. It also has a water temerature sensor and a turbidimeter.

Two people kneeling to collect a carcass
Measuring wildlife mortality
Measuring wildlife mortality
Measuring wildlife mortality

Scientists collect carcasses at a wind energy facility to estimate total wildlife mortality at a site.

Scientists collect carcasses at a wind energy facility to estimate total wildlife mortality at a site.

A hollowed out base of a sequoia tree
Burned, hollowed out base of a sequoia tree in Sequoia National Park
Burned, hollowed out base of a sequoia tree in Sequoia National Park
Home damaged by post fire debris flow
Montecito home damaged by post-wildfire debrisflow.
Montecito home damaged by post-wildfire debrisflow.
Montecito home damaged by post-wildfire debrisflow.

Damage from a major post-wildfire landslide that occurred on 9 January 2018 near Montecito, Santa Barbara County as a result of the 2017 Thomas Fire.

Damage from a major post-wildfire landslide that occurred on 9 January 2018 near Montecito, Santa Barbara County as a result of the 2017 Thomas Fire.

a person stands on a rocky beach wearing sunglasses and a backpack with an antenna.
Christie Hegermiller geared up for beach elevation survey
Christie Hegermiller geared up for beach elevation survey
Christie Hegermiller geared up for beach elevation survey

Christie gears up to survey beach elevation in Santa Cruz, CA with a precise and accurate GPS unit mounted to her backpack. The GPS unit on her backpack communicates with a nearby "base station" to minimize errors in location.

Christie gears up to survey beach elevation in Santa Cruz, CA with a precise and accurate GPS unit mounted to her backpack. The GPS unit on her backpack communicates with a nearby "base station" to minimize errors in location.