Amid the prairie grasses are islands of uncovered rock, where American Indians left carvings — petroglyphs — humans, deer, elk, buffalo, turtles, thunderbirds, atlatls and arrows. They tell a story that spans more than 7,000 years.
Did you know?
Field Trip Video
Jeffers Petroglyphs is a living, sacred site.
Some Petroglyphs are more than 7,000 years old.
On a hardness scale of 1 to 10, ten being diamonds, Sioux Quartzite is a 7.5.
Preserved by the Minnesota Historical Society since 1966, the Sioux Quartzite outcropping at Jeffers Petroglphys records almost 7,000 years of history.
Less than one percent of the nation’s tallgrass prairie remains. Jeffers Petroglyphs Historic site’s 160 acres is a small but important fragment with over 250 plant species.
Many styles of Petroglyphs are found on the Sioux Quartzite outcropping. These include abstract, hoof print, early hunting, and en Toto.
Of Jeffers Petroglyphs Historic Site’s original 80 acres, 33 acres is never-been-plowed native prairie. The remaining 47 acres is one Minnesota’s first prairie restorations.
The best time to see the Petroglyphs is when the sun is low in the sky, either morning or late afternoon.
The Sioux Quartzite rock outcropping features about 5,000 petroglyphs.