http://3dparks.wr.usgs.gov/nyc/common/captions.htm Uploaded from : Appalachianorogeny English applies to jurisdiction: United States of America determination
described at URL: https://www.flickr.com/photos/jsjgeology/39250962781/ operator: Flickr URL: https://live.staticflickr.com/4728/39250962781_40ef4aab7b_o.jpg
Allegheny Orogeny (Pennsylvanian) - Africa collided with eastern North America. This was a Pangaea supercontinent formation event. The Appalachians mostly