The Big Bend of the Rio Grande; a guide to the rocks, landscape, geologic history, and settlers of the area of Big Bend National Park - Maxwell, Ross A. (Austin, University of Texas, 1968)
Part of illustrative matter in pocket.
Bibliography: p. [121]-122.
Keywords: Geology -- Texas -- Big Bend National Park; Botany -- Texas -- Big Bend National Park; Big Bend National Park (Tex.) -- History; Botany; Frontier and pioneer life; Geology; Texas; Texas -- Big Bend National Park; Maps; History