"1439.88"^^ . . . "Clear Lake Volcanic Field"@en . . . . "USGSKelseyville" . . "The Clear Lake Volcanic Field is a volcanic field beside Clear Lake in California's northern Coast Ranges. The site of late-Pliocene to early Holocene activity, the volcanic field consists of lava domes, cinder cones, and maars with eruptive products varying from basalt to rhyolite."@en . .