Blue Moon

Ancient Miwok harvested salt
United States Geological Service researchers James Moore and Michael Diggles have located a site halfway between Yosemite and Tahoe where 369 circular basins were once used to distill salt which was then traded for food and other items by the Miwok. Carved in glaciated granitic bedrock in a canyon on the west slope of the northern Sierra Nevada, the salt-collecting depressions are a meter-and-a-half across – much bigger than those found in the more plentiful acorn grinding rocks, according to Diggles, and nearly one meter deep. Read full story from indiancountrytoday.com