I knew it was West Virginia.
This is not climate change, y'all. The Appalachians are an eroding mountain range. The town where my sister lives is in a constant battle to keep the roads from falling into the adjacent creek beds. It's just an absurdly difficult geography to build on.
Yep! Over a billion years old and a major feature on Pangaea.
https://en.m.wikipedia.org/wiki/Geology_of_the_Appalachians