{"product_id":"indian-grinding-rock-state-historic-park","title":"Indian Grinding Rock State Historic Park","description":"\u003cp\u003e\u003cspan\u003eOfficial \u003c\/span\u003e\u003cspan\u003eTravel Stamp Vinyl Sticker\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003ePlanning a trip? Check out the \u003ca href=\"https:\/\/www.parks.ca.gov\/?page_id=553\" rel=\"noopener\" target=\"_blank\"\u003eIndian Grinding Rock State Historic Park\u003c\/a\u003e website.\u003c\/p\u003e\n\u003cp\u003eThis cultural preserve holds North America's largest collection of bedrock mortar holes. Its popular limestone outcrop contains 1,185 cavities carved through centuries of acorn grinding by the Northern Sierra Miwok, as well as ancient petroglyphs. Each fall, Native families gather here for Big Time, a traditional celebration of the acorn harvest.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeed to commemorate more of your Golden \u003c\/span\u003e\u003cspan\u003eState \u003c\/span\u003e\u003cspan\u003etravels? Check out our entire \u003ca title=\"Travel Stamps | California | The Golden State\" href=\"https:\/\/travelstamps.com\/collections\/california\" target=\"_blank\"\u003eCalifornia Collection\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Travel Stamps","offers":[{"title":"Default Title","offer_id":67005923917939,"sku":"TS-CA113","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0072\/2013\/3943\/files\/IndianGrindingRockSHPTS-CA113Webfiles2026_ProductImage.png?v=1793037363","url":"https:\/\/travelstamps.com\/products\/indian-grinding-rock-state-historic-park","provider":"Travel Stamps","version":"1.0","type":"link"}