Okay, I’m pretty sure this is limestone. The bluffs of southeast Minnesota are riddled with these things. All along the Mississippi, these cross sections tell stories of their creation. Layers of rock reveal themselves as these cliffs shorn straight down the middle like they were deliberately chopped in half.
Whitewater State Park is a beautiful place. Early in the season it still has that brownish cast, but these brilliant cliffs are always fascinating to me.
Look, I had to climb a ton of stairs to get this shot. Appreciate, okay?