Brown County State Park: Land of Scenic Hills, Ridges, and Valleys
Following regional uplift, the rocks were exposed to weathering and erosion. After that time, hundreds of feet of these ancient rocks were stripped away by the streams of those times, and the scenic hills and valleys of this area were eventually formed. Where more resistant sandstones protected the underlying rocks, much more prominent hills like Weed Patch Hill, Hohen Point, and others were formed.
Ice Age glaciers never actually reached Brown County State Park, but evidence of them can be seen north and east of the park.
Our Hoosier State Beneath Us: Geomorphology