Putah Creek Basin

The Putah Creek Watershed lies in four counties: Napa County, Lake County, Solano County and Yolo County. Putah Creek begins in Lake County, and empties into the Sacramento River.

 

The watershed is bounded by Howell Mountain and Atlas Peak to the west and the Blue Ridge and Vaca Mountains to the east. The dominant feature in the watershed is Lake Berryessa, formed when Monticello Dam was built on Putah Creek in 1957. Major land uses in the watershed are recreation and rangeland.

 

The watershed supports a unique assemblage of natural communities including serpentine chaparral, grasslands, oak savanna, oak and mixed oak/coniferous woodlands, riparian, freshwater lake, and cliff habitats.

Source: Napa County Resource Conservation District

Learn more with maps!

The links below take you to interactive maps that illustrate different feaures of the watershed.

Assessment and Monitoring

Fire Ecology

Plants and Animals

Soil and Geology

Water Resources