Indian Grinding Rock State Historic Park is located in the Sierra Nevada foothills eight miles east of Jackson. The park nestles in a little valley 2,400 feet above sea level with open meadows and large valley oaks that once provided the native Americans of this area with an ample supply of acorns. The park was created in 1968 and preserves a great outcropping of marbleized limestone with some 1,185 mortar holes -- the largest collection of bedrock mortars in North America. Events The second Saturday of every month you can enjoy watching Native American Jack Flores perform traditional craft making skills such as basket weaving and flint knapping. Please call the museum for more information. Open sunrise to sunset.

Very easy trail. There are two loops, the north trail and the south trail, both pretty short, under 2 miles. Dogs are not allowed on the trails but are allowed in the park on the paved areas. Nice campground. Twice a year the Miwok Indians come to the park to celebrate their culture. Wonderful events. Museum opens at 10 am.

The have amazing giant black oak trees

Worst "hike" super short. Perfect if you have younger kids.

I love this place. I grew up close by so I spent many days exploring around the park and have watched it grow over the years. This is a great family location. You get a little history and some exercise as well. The trails are not too difficult and having the amenities make this a must. Please enjoy and support our fabulous park.

This is a very special place however the trail is short. It's best to go when there are events going on because then you get the whole expirience.

Indian grinding rock is a state park, with a small Native American History museum. The grinding rock contains decorative carvings, known to be thousands of years old. The carvings are becoming hard to see, due to natural erosion. The nature trail takes you around a Native American village. Some buildings continue to be used in native American ceremonies. The trail is a flat, easy to navigate surface, some of which is paved. There is a self guided tour, showing plants the native Americans depended on for survival. the trail can be warm during the spring and summer, and would probably be unremarkable, if not for the strong Native American history, that can be found within. There are restroom facilities and water available on site.