Cottonwood County, US
The Jeffers Petroglyphs site is an outcrop in southwestern Minnesota with pre-contact Native American petroglyphs. The petroglyphs are pecked into rock of the Red Rock Ridge, a 23-mile (37 km)-long Sioux quartzite outcrop that extends from Watonwan County, Minnesota to Brown County, Minnesota. The e
xposed surface is approximately 150 by 650 feet (50 by 200 m) and surrounded by virgin prairie.
Listen to the audio guide for Jeffers Petroglyphs Free on WIP — starts by itself when you arrive, even with the screen off