Earlier in the year, I visited Dolliver State Park up near Fort Dodge. It's a park similar to Ledges State Park in that it has sandstone bluffs. Dolliver's bluffs are composed of a slightly different mineral mixture than Ledges, called copperas. The park is pretty large and there are a lot of trails to explore.It was kind of rainy when I went, so there were some snails out and about. Here's one that was hanging out on a tree trunk. He was pretty large.