Obsidian. Photo by Kathleen Scavone.
LAKE COUNTY, Calif. – The science of geology presents itself to us daily via Lake County's contrasting landforms of mountains, valleys, streams and lakes.
As you drive south between Hidden Valley and Middletown great tracts of serpentinite, our State Rock lay exposed.
Middletown's Rabbit Hill offers stunning geologic features in its boulders and rock outcrops where serpentinite and a rock made up of microcrystalline quartz known as chert are exposed.
Serpentinite comes in an array of colors from shiny green to tans and browns. If you've driven through the Lake 29 Expressway project, which is, as reported on Aug. 6, 2020, in this publication, "The largest highway project in the county in 50 years," you may have marveled at the geologic features being unearthed by monster machines.