Hell's Hollow

There's a hiking trail near Sarah's house in New Castle, PA (near Pittsburgh) that is called Hell's Hollow. I'm quite unclear about the etymological roots of the name, since the trails are in beautiful Western Pennsylvania hills with water, rock formations, and trees aplenty. Sarah has wanted to take me there for years, and yesterday, she finally did. We had a wonderful time walking through the woods before we stopped and talked in view of a waterfall. So beautiful!