Patti I.
Yelp
On a recent road trip I stopped at the Jeffers Petroglyphs, "The most underrated tourist spot in Minnesota." I disagree; I found the petroglyphs underwhelming. The ONE figure that they use in their literature is practically the only recognizable one there. To be fair, I visited midday, and they note that the petroglyphs are more visible early or late in the day when the angle of the sun is low, casting shadows.
Still, there are several other good reasons to come here. First, you have to get off the freeway, and the drive here on small state and county roads gives you a great idea of how rich and vast southern Minnesota farm country is.
Second, the wildflowers and grasses are mesmerizing. The swishing, rattling sound of the wind through the vegetation here gives you a strong sense of this unique piece of prairie.
The best part for me, however, was standing on an outcropping of the 1.6 billion year old Sioux Quartzite (some of the oldest rock on the planet!) that bears both fossilized sand ripples from its origin as seabed AND glacial striations. It was so moving for this geo-geek that I nearly wept.