Borax Lake Site

The site, a deeply stratified former lakeshore, contains evidence of the earliest known period of human habitation in what is now California, dating back 12,000 years.

The Borax Lake site is located near the community of Clearlake, in the North Coast Ranges of northern California near Mount Konocti.

The stratigraphy of the site suggests repeated occupation of the area across a long time period, from about 12,000 to present day.

Important finds include Clovis-style projectile points fashioned out of obsidian, which was probably obtained from Borax Lake.

He brought the site to the attention of Mark Harrington of the Southwest Museum, who performed the first formal archaeological investigation.