NPS Geodiversity Atlas—Interior Region 6 Index

Alibates flint deposits were used by indigenous peoples of the Texas Panhandle for thousands of years. The flint deposits are within the Alibates Dolomite, a marine unit within the Permian red beds of the Texas panhandle. Links to products from Baseline Geologic and Soil Resources Inventories provide access to maps and reports.

Each park-specific page in the NPS Geodiversity Atlas provides basic information on the significant geologic features and processes occurring in the park.

Each park-specific page in the NPS Geodiversity Atlas provides basic information on the significant geologic features and processes occurring in the park.

Each park-specific page in the NPS Geodiversity Atlas provides basic information on the significant geologic features and processes occurring in the park.

Chickasaw National Recreation Area (NRA) preserves historic freshwater and mineral springs within a landscape of gently rolling hills and stream-cut ravines that are the erosional remnants of the Arkbuckle Mountains in Oklahoma. Links to products from Baseline Geologic and Soil Resources Inventories provide access to maps and reports.

Fort Davis National Historic Site contains one of the most intact examples of a post-Civil War frontier fort in the American Southwest. It is located in the Davis Mountains that were formed by volcanic activity over a three-million-year period that ended approximately 35 million years ago. The cliffs above the fort are made of the volcanic Sleeping Lion Formation display well-developed columnar jointing.

Each park-specific page in the NPS Geodiversity Atlas provides basic information on the significant geologic features and processes occurring in the park. Links to products from Baseline Geologic and Soil Resources Inventories provide access to maps and reports.

Lake Meredith National Recreation Area is situated within a surprising section of canyon landscape below the Caprock Escarpment on the otherwise mostly flat High Plains of Texas. The Alibates Dolomite and Permian red beds are exposed in low mesas, buttes, and hills. Links to products from Baseline Geologic and Soil Resources Inventories provide access to maps and reports.

Lyndon B. Johnson NHP is in the Pedernales River valley in the Hill Country of Texas, a relatively rugged landscape of hills with granitic or carbonate bedrock and characterized by shallow soils. Links to products from Baseline Geologic and Soil Resources Inventories provide access to maps and reports.

Each park-specific page in the NPS Geodiversity Atlas provides basic information on the significant geologic features and processes occurring in the park. Links to products from Baseline Geologic and Soil Resources Inventories provide access to maps and reports.