Unified Interior Regions
San Francisco Bay-Delta
The Bay-Delta is a nexus for challenging issues about water, ecosystems, and human use. USGS science helps address key problems and uncertainties.
Read moreRegion 10: California-Great Basin
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U.S. Geological Survey field crews are measuring flooding across the country as spring weather is in full swing. Warming temperatures, increased precipitation and snowmelt have caused moderate to major flooding in the upper Midwest, East Coast, Central Plains and the Southeast portions of the country.
Budget Focuses on Bringing Science, Facilities, and Infrastructure into the 21st Century