riffsyphon1024: Geomorphology in Action
riffsyphon1024: Ableman-Rock Springs Mural
riffsyphon1024: Entering Ableman Gorge
riffsyphon1024: Van Hise Rock Historical Marker
riffsyphon1024: Hey That's Van Hise Rock, Right?
riffsyphon1024: Not Much of a Rock, RIght?
riffsyphon1024: Oh There It Is
riffsyphon1024: Friendship Mound From WI 13
riffsyphon1024: Zoom on Friendship's Bluff
riffsyphon1024: Friendship Mound Near the Dam
riffsyphon1024: Friendship Mound from the Dam
riffsyphon1024: Moundview
riffsyphon1024: Checking Out the "Geology"
riffsyphon1024: Roche-A-Cri Mound
riffsyphon1024: Exit to the USGS
riffsyphon1024: Pierre Shale on the Opposite Shore
riffsyphon1024: The Heavily Recessive Pierre Shale
riffsyphon1024: Into the Desolation
riffsyphon1024: Pierre Shale 1
riffsyphon1024: Pierre Shale II
riffsyphon1024: Pierre Shale III
riffsyphon1024: Beginnings of Peakforms
riffsyphon1024: Badlands Storm System
riffsyphon1024: There's a Reason They Call This the Bad-Lands
riffsyphon1024: The Exposed White River Formation
riffsyphon1024: Badlands National Park from I-90
riffsyphon1024: Where It Lumps, It Opens Up
riffsyphon1024: Batpeaks
riffsyphon1024: Isolated Change
riffsyphon1024: Moonscape