Indian Grinding Rock State Historic Park | Sierra Nevada
Indian Grinding Rock State Historic Park is located in the Sierra Nevada foothills, eight miles east of Jackson. The park is nestled in a small valley 2,400 feet above sea level with open meadows and large valley oaks that once provided Native Americans with an ample supply of acorns. The 135acre Park preserves the Grinding Rock, a massive outcropping of marbleized limestone with 1,185 mortar