Beyond the spectacular in Monument Valley, Navajo Tribal ParkDonald L. Baars · First published 1998Open the Tome
The mind-boggling scenerio [i.e., scenario] of the Colorado National MonumentDonald L. Baars · First published 1998Open the Tome
Shelf carbonates of the Paradox Basin San Juan River field tripDonald L. Baars · First published 1989Open the Tome