This full-color, oversize map, designed for hikers in the park, describes geologic units and features. The text documents the geologic history of the Big Bend Ranch State Park area. Support was provided by the Texas Parks and Wildlife Department and the U.S. Geological Survey.

Beautifully illustrated by more than 100 photos and diagrams, this nontechnical guide surveys the geologic evolution of Mustang Island and the relationship between physical setting and biologic environments along the Texas coast. Support was provided by the National Oceanic and Atmospheric Administration under the Texas Coastal Management Program, administered by the Texas General Land Office, and by the Texas Parks and Wildlife Department.