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More attendees gather at the USGS booth at the 2026 Tahoe Summit. More attendees gather at the USGS booth at the 2026 Tahoe Summit.
More attendees gather at the USGS booth at the 2026 Tahoe Summit. More attendees gather at the USGS booth at the 2026 Tahoe Summit.
Even more attendees gather at the USGS booth at the 2026 Tahoe Summit. Even more attendees gather at the USGS booth at the 2026 Tahoe Summit.
Even more attendees gather at the USGS booth at the 2026 Tahoe Summit. Even more attendees gather at the USGS booth at the 2026 Tahoe Summit.
Lake Tahoe, CA in August 2026. Lake Tahoe, CA in August 2026.
Lake Tahoe, CA in August 2026. Lake Tahoe, CA in August 2026.
Scientists from the California and Nevada Water Science Centers attended the 30th annual Lake Tahoe Summit to discuss the work the USGS is doing in the Tahoe Basin. This year’s event was hosted by Nevada senator Jacky Rosen and featured, American rock climber and author, Tommy Caldwell, as keynote speaker.
Scientists from the California and Nevada Water Science Centers attended the 30th annual Lake Tahoe Summit to discuss the work the USGS is doing in the Tahoe Basin. This year’s event was hosted by Nevada senator Jacky Rosen and featured, American rock climber and author, Tommy Caldwell, as keynote speaker.
Attendees gather at the USGS booth at the 2026 Tahoe Summit. Attendees gather at the USGS booth at the 2026 Tahoe Summit.
Attendees gather at the USGS booth at the 2026 Tahoe Summit. Attendees gather at the USGS booth at the 2026 Tahoe Summit.
AI-generated illustration depicting a rain-on-wildfire event in a mountainous river corridor. The image shows active wildfire conditions near a river during a storm, with flames burning along forested hillslopes, smoke and rainfall interacting in the atmosphere, and fire reflected in the water surface.
AI-generated illustration depicting a rain-on-wildfire event in a mountainous river corridor. The image shows active wildfire conditions near a river during a storm, with flames burning along forested hillslopes, smoke and rainfall interacting in the atmosphere, and fire reflected in the water surface.
Mercury contamination from historic gold mining represents a potential risk to human health and the environment. There is a lack of public awareness of the history mercury use in gold mining and how it contributed to this situation, and also what the present concerns are. Specifically, the public is not aware of locations and levels of contamination.
Mercury contamination from historic gold mining represents a potential risk to human health and the environment. There is a lack of public awareness of the history mercury use in gold mining and how it contributed to this situation, and also what the present concerns are. Specifically, the public is not aware of locations and levels of contamination.
Heterosigma akashiwo collected from Seaplane Lagoon in San Francisco Bay on August 9, 2022. Video was taken with an ioLight 1mm microscope.
Heterosigma akashiwo collected from Seaplane Lagoon in San Francisco Bay on August 9, 2022. Video was taken with an ioLight 1mm microscope.
High flows at streamgage 11172945 (Alameda Creek above Div Dam near Sunol, California) were captured by USGS hydrologic technician Louis Cannarozzi on 12/31/2022. Heavy precipitation caused higher-than-normal streamflow in many areas as an atmospheric river moved through northern California.
High flows at streamgage 11172945 (Alameda Creek above Div Dam near Sunol, California) were captured by USGS hydrologic technician Louis Cannarozzi on 12/31/2022. Heavy precipitation caused higher-than-normal streamflow in many areas as an atmospheric river moved through northern California.
This video explains how streamgages are used to measure the height and flow, or speed, of streams. By monitoring the height and flow of streams, the people who manage water infrastructure can have advanced noted of when the water is rising and how fast it’s coming.
This video explains how streamgages are used to measure the height and flow, or speed, of streams. By monitoring the height and flow of streams, the people who manage water infrastructure can have advanced noted of when the water is rising and how fast it’s coming.
USGS scientists collect water quality samples in the San Francisco Bay. The samples have been collected at the same locations for >50 years and are part of one of the longest running datasets of its kind in the United States.
USGS scientists collect water quality samples in the San Francisco Bay. The samples have been collected at the same locations for >50 years and are part of one of the longest running datasets of its kind in the United States.
Slow moving footage of the San Francisco Bay-Delta shoreline taken from a USGS research vessel. The clip shows vegetation and hills in the background. This video has no audio.
Slow moving footage of the San Francisco Bay-Delta shoreline taken from a USGS research vessel. The clip shows vegetation and hills in the background. This video has no audio.
SGS hydrologist Dr. Claudia Faunt discusses her new study about Calfornia's vast central valley groundwater system and the new study findings.
SGS hydrologist Dr. Claudia Faunt discusses her new study about Calfornia's vast central valley groundwater system and the new study findings.
The name of this webcam is THREEMILE SLOUGH NR RIO VISTA. It is located in Rio Vista, CA. The timelapse length is 10 seconds (100 images) and the collection interval is every 15 minutes.
The name of this webcam is THREEMILE SLOUGH NR RIO VISTA. It is located in Rio Vista, CA. The timelapse length is 10 seconds (100 images) and the collection interval is every 15 minutes.
The name of this webcam is Topanga C A Hwy 1 Bridge nr Malibu. It is located in Malibu, CA. The timelapse length is 10 seconds (100 images) and the collection interval is every 15 minutes.
The name of this webcam is Topanga C A Hwy 1 Bridge nr Malibu. It is located in Malibu, CA. The timelapse length is 10 seconds (100 images) and the collection interval is every 15 minutes.
The name of this webcam is South Mokelumne River at New Hope Bridge near Walnut Grove. It is located at in Walnut Grove, CA. The timelapse length is 10 seconds (100 images) and the collection interval is every 15 minutes.
The name of this webcam is South Mokelumne River at New Hope Bridge near Walnut Grove. It is located at in Walnut Grove, CA. The timelapse length is 10 seconds (100 images) and the collection interval is every 15 minutes.
The name of this webcam is Salinas River at Bradley. It is located in Bradley, CA. The timelapse length is 10 seconds (100 images) and the collection interval is every 15 minutes.
The name of this webcam is Salinas River at Bradley. It is located in Bradley, CA. The timelapse length is 10 seconds (100 images) and the collection interval is every 15 minutes.
The name of this webcam is Truckee River at Boca Bridge near Truckee. It is located at in Truckee, CA. The timelapse length is 10 seconds (100 images) and the collection interval is every 15 minutes.
The name of this webcam is Truckee River at Boca Bridge near Truckee. It is located at in Truckee, CA. The timelapse length is 10 seconds (100 images) and the collection interval is every 15 minutes.
The name of this webcam is False River Near Oakley. It is located in Oakley, CA. The timelapse length is 10 seconds (100 images) and the collection interval is every 15 minutes.
The name of this webcam is False River Near Oakley. It is located in Oakley, CA. The timelapse length is 10 seconds (100 images) and the collection interval is every 15 minutes.
