Owned and operated by the Minnesota Historical Society since 1966, Jeffers Petroglyphs is a sacred Native American site featuring approximately 5,000 petroglyphs on a large Sioux Quartzite rock outcropping that spans the Red Rock Ridge. The site is not located in either the towns of Comfrey or Jeffers, but in the rural outskirts of Comfrey, Minnesota on County Road 2.
2021 hours: The site will re-open to the public on June 3. Hours in June and July: Thursday, Friday and Saturday from 10 a.m. August through Labor Day: Thursday, Friday, Saturday from 10 a.m. Sunday - noon to 5. September: Saturdays- 10 a.m. October: 2nd, 9th, 11th, 16th -10 a.m. SITE FEE to see the museum and petroglyphs: $10 for adults, $8 for seniors, college/military w/ID and $8 for children ages 5-17. MNHS members and ages 4 and under are FREE . *Updated by staff, unofficial page.