Birmingham-Big Canoe Valley/Cahaba Ridges Boundary

The boundary between the Birmingham-Big Canoe Valley and Cahaba Ridges. RM: Red Mountain, SM: Shades Mountain, SV: Shades Valley. Shades Valley is cut in shales, and Shades Mountain is held up by Pottsville sandstone.

Aerial view of the boundary area between the Birmingham–Big Canoe Valley and the Cahaba Ridges, with text labels marking I-65, the Cahaba Ridges, and the Birmingham–Big Canoe Valley.
Photograph by Mike Neilson
Aerial view of the boundary area between the Birmingham–Big Canoe Valley and the Cahaba Ridges, with text labels marking I-65, the Cahaba Ridges, and the Birmingham–Big Canoe Valley.