31. Monongahela River Abstract30. Mud and Texture2928. Dolly Sods windmills.  Dolly Sods, WV.27. Dolly Sods, WV.26. Pittsburgh PA.252423. Brownsville PA.22. Jumonville Cross, PA.21201918171615. Meadow Run, Ohiopyle State Park.  Ohiopyle, PA.141312