The Knobstone Escarpment is a rugged geologic region in Southern Indiana. Physically, the Knobstone Escarpment is the most rugged terrain in Indiana. The highest hill in the area is Weed Patch Hill, with an elevation of 1,056 feet above sea level.
The escarpment's most prominent feature is its steep hills, often called knobs, and ravines. Brown County State Park features views from the region's highest elevations.