Indian Grinding Rock Environmental Living Program 2017 to be determined
Camping in the U’macha’tam’ma’ sites (bark houses to the north) is a unique experience. Here you can "get away from it all" and get back in touch with the natural world while simultaneously learning something about Miwok life. Indian Grinding Rock State Historic Park (IGR) is located in the Sierra Nevada foothills, 12 miles east of Jackson, CA. The park nestles in a little valley that once provided the Native Americans of this area with an ample supply of acorns. The park preserves a great outcropping of marbleized limestone with some 1,185 mortar holes -- the largest collection of bedrock mortars in North America.