Home › Authors › Edwin K. Maughan 👤 Edwin K. Maughan b. 1926 ยท 2 books Books by Edwin K. Maughan Summary of the Ancestral Rocky Summary of the Ancestral Rocky Mountains epeirogeny in Wyoming and adjacent areas 1991 Big Snowy and Amsden Groups an Big Snowy and Amsden Groups and the Mississippian-Pennsylvanian boundary in Montana 1967