Petroglyphs at Indian Grinding Rock State Park
N 38° 25.494 W 120° 38.589
10S E 705738 N 4255590
California's oldest petroglyphs
Waymark Code: WMZBE
Location: California, United States
Date Posted: 11/21/2006
Views: 148
California's
Indian Grinding Rock State Historic Park is mainly famous for its great outcropping of marbleized limestone with some 1,185 mortar holes — the largest collection of bedrock mortars in North America. But it also features a number of ancient petroglyphs.
Some of these carvings are thought to as much as two or even three thousand years old and are now becoming difficult to see. A poster of all petroglyphs can be seen at the museum. The most obvious ones are a weaving patern, a circle, believed to be a sun symbol and a human hand.
Visit Instructions:1. You may log as many different waymarks as you wish but you may only log each one once.
2. You must include a close up photo of the pictograph and your GPSr. The pictograph must be recognizable.
3. Tell a little bit about what you learned of the area.