posted 15 : August : 201829 : March : 2025 :: Dr. John Hopkins place: Four Corners, Colorado field work Chimney Rock, a resistant column of the Upper Cretaceous Point Lookout Sandstone skirted by Mancos Shale, Towaoc, Colorado, August ©2018 hopkins/neoscenes. Related posts: field work ... field work ... field work ... field work ... field work ...
