WICC Interactive Map map tips

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Napa River Basin More

Soil and Geology Map

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Click to learn more about each layer

Major Streams

Faults

Geology

Artificial Fill (historic)

Clear Lake Volcanics (Pleistocene-Pliocene)

Sonoma Volcanics (Pliocene-Miocene)

Other Pleistocene - Pliocene Units (QT)

Franciscan Complex (Crataceous-Jurasic)

Great Valley Complex (Cretaceous-Jurassic)

Early Tertiary Assemblages

Late Tertiary Assemblages

Surficial Deposits

Water

Soil Texture

Clay

Clay loam

Silty clay loam

Fine sandy loam

Silt loam

Loam

Sandy Loam

Unknown

Watersheds

Napa Watersheds

Napa-Sonoma Marshes

Napa County

Napa River Basin More

WICC Pins

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Events

Documents and Media Links

News

Pages

Images