Unified Interior Regions
California
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
San Bernardino, Cone Camp Multiple-depth Monitoring Well Sites
Looking east towards USGS Site ID: 340541117074401-6, Site Name: 001S002W07Q001S-6S, Local name: SBCC 1-6 in San Bernardino County, California.
PubTalk 12/2006 — The Mojave National Preserve
Geology and Water Shape Desert Plant Communities
by David Miller, Geologist and John Nimmo, Soil Hydrologist
Â
- One of the largest units in the National Park System, the Mojave National Preserve was established in 1994
- The Preserve encompasses great sand dunes (including "singing sands"), young volcanic features,
PubTalk 12/2006 - Mojave
Title: The Mojave National Preserve: Geology and Water Shape Desert Plant CommunitiesÂ
- One of the largest units in the National Park System, the Mojave National Preserve was established in 1994
- The Preserve encompasses great sand dunes (including "singing sands"), young volcanic features, forests of Joshua trees, and fields of
PubTalk 11/2006 — Drills, Spills, and Chills
The inside story on USGS estimates of Alaskan oil and gas resources
by Ken Bird and Rick Stanley, Geologists
Â
- See the basic elements of a petroleum system.where the oil comes from and where it goes
- USGS resource assessments in Alaska have a long history and have changed over time
- Learn how the newest
PubTalk 10/2006 — The Parkfield 2004 Earthquake
Lessons From the Best-Recorded Quake in History
by Andy Michael, Geophysicist
Â
- To record high-quality measurements close to a large earthquake, the right instruments have to be in the right place at the right time
- Such a convergence happened, for the fi rst time ever, on September 28, 2004, when a magnitude 6
Salton Sea Sunset
Sunset on the southeast side of the Salton Sea, CA.
PubTalk 9/2006 — Water Odysseys
Surface-water and ground-water flow in the Santa Clara Valley
by Randall T. Hanson, Research Hydrologist
Â
- What has deep drilling in the valley found about ground-water flow?
- A new computer model improves our understanding of water-flow patterns
- Learn how underground water makes the ground rise and fall
PubTalk 8/2006 — Hidden Faults Under Silicon Valley
Do new discoveries change our view of Santa Clara Valley earthquake hazards?
by R. D. Catchings, GeophysicistÂ
- Seismic profiles have revealed the valley.s deep structure and previously unknown faults
- Earthquakes and seismic reflection images suggest some reverse faults beneath the valley that are not seen at the surface
Landsat 7 infrared image of wildfires near Yucca Valley, CA. July 2006
Â
Landsat 7 infrared image of wildfires near Yucca Valley, California. July 2006
PubTalk 7/2006 — Uncovering Silicon Valley
Weaving a tale of three sedimentary basins
by Victoria E. Langenheim, Geophysicist
Â
- Geophysical probing reveals the geology under Santa Clara Valley
- What does the new 3-D view tell us about the San Andreas fault system?
- How does this affect earthquake hazards and ground-water resources?
- Was the
California vineyard
A photo of a California (ecoregion 6) grape vine taken during field verifcation of Land Cover Trends project.
PubTalk 6/2006 — Geology on Conveyor Belts
New ideas on Bay Area evolution from a decade of geologic mapping
By Russ Graymer, Geologist
Â
- What was the Bay Area like during the Age of Dinosaurs?
- Learn about the distant origins of some rocks seen around the bay
- Hear how the San Andreas fault system has rearranged the region.
- Volcanoes in
An earth-science project that will enable scientists to assess more accurately earthquake hazards and underground water resources in the western Santa Clara Valley area of Los Gatos-Campbell, is now underway.Â
In a report released today, the U.S. Geological Survey (USGS) has documented elevated levels of mercury in bass and catfish in the Bear and South Yuba River watersheds in the Sierra Nevada of northern California. Mercury is a well-known environmental pollutant that can have serious effects on human health.
Drilling of a 1000-foot-deep ground-water monitoring well will get underway in San Jose, Thursday, September 14.Â
Hailed as the world’s largest water management effort, the CALFED Bay-Delta Program, a partnership between the state of California and the federal government, has announced the assignment of Dr. Samuel N. Luoma, a scientist with U.S. Geological Survey (USGS), as the Interim Science Leader of the CALFED Science Program.
Drilling of a 1400-foot-deep, multi-port ground-water monitoring well will get underway in west Long Beach, Monday, July 10.
U.S. Geological Survey Director, Dr. Charles ’Chip’ Groat, will deliver the keynote address at Monday’s opening session of the 20th annual user conference of the Environmental Systems Research Institute (ESRI), at the San Diego Convention Center.
In response to the Cerro Grande/Los Alamos wildfire, the U.S. Geological Survey has entered into an agreement with the U.S. Army Corps of Engineers to establish a streamflow gage and collect water-quality data from the Rio Grande upstream from Cochiti Reservoir to determine the effects of the fire upon the water system.
The spring 2000 survey of 2,317 California sea otters indicates an overall increase by 10.9 percent since the 1999 spring survey of 2,090 individuals.
By combining techniques developed by Leonardo da Vinci with today’s computer applications, an artist and two scientists at the U.S. Geological Survey in Menlo Park, Calif., have produced one of the most dramatic and beautiful maps of the United States, ever published.
A report summarizing suspended-solids concentrations in San Francisco Bay from October 1997 through September 1998 has been published by the U.S. Geological Survey.
A rare opportunity to watch as waterfowl biologists track northern pintail ducks is available by visiting a U.S. Geological Survey website called "Discovery for Recovery."Â
Workshop on "Restoring Pacific Rivers: Evaluating the Progress of Watershed Restoration for Salmon."
Social Media
Locations
Southwest Regional Director's Office
Phone: (916) 278-9551
Fax: (916) 278-9566
Pacific Coastal and Marine Science Center
Phone: 831-460-7401
Fax: 831-427-4748
Sacramento Projects Office (USGS California Water Science Center)
Phone: 916-278-3000
Fax: 916-278-3070
Western Ecological Research Center - Headquarters
Phone: (916) 278-9485
Fax: (916) 278-9475
Geology, Minerals, Energy and Geophysics Science Center
Phone: (650) 329-4881
Earthquake Science Center
Western Geographic Science Center - Main Office
San Diego Projects Office (USGS California Water Science Center)
Phone: 619-225-6100
Fax: 619-225-6101
USGS California Volcano Observatory (CalVO package delivery)
askcalvo@usgs.gov
Phone: 650-329-5083
Truckee Field Office (USGS California Water Science Center)
Phone: 530-587-0910
Fax: 530-587-0914
Redding Field Office (USGS California Water Science Center)
Phone: 530-246-5282
Fax: 530-246-0717
Ukiah Field Office (USGS California Water Science Center)
Phone: 707-468-4040
Fax: 707-468-4022
Redlands Field Office (USGS California Water Science Center)
Phone: 909-798-3272
West Sacramento Projects Office (USGS California Water Science Center)
Phone: 916-617-2799
Eureka Satellite Office (USGS California Water Science Center)
Phone: 707-442-3169
Fax: 707-445-7860
Sacramento Field Office (USGS California Water Science Center)
Phone: 916-381-0207
Fax: 916-381-0556
Santa Cruz Field Office (USGS California Water Science Center)
Phone: 831-460-7494
Santa Maria Field Office (USGS California Water Science Center)
Phone: 805-928-9539
Fax: 805-928-9220
Poway Field Office (USGS California Water Science Center)
Phone: 858-679-4015
Fax: 858-679-4019
USGS Menlo Park Library
men_lib@usgs.gov
Phone: 650-329-5027
Fax: 650-329-5132