Lange, A.L., 1962, Grand Canyon cave provinces [abs.]: Cave Notes [Cave Research Associates, Castro Valley, Calif.], v. 4, p. 42-43.
Lange, A.L.
Cave Notes [Cave Research Associates, Castro Valley, Calif.], v. 4, p. 42-43.
Cave, Speleology, Karst, Redwall Limestone - Mississippian,