Digital Surficial Geologic Map of Beech Creek Unit, Big Thicket National Preserve, Texas

The Digital Surficial Geologic-GIS Map of the Beech Creek Unit and Vicinity, Big Thicket National Preserve, Texas is composed of GIS data layers and tables from the National Park Service's Geologic Resources Inventory program. It is available in ESRI file geodatabase and OGC geopackage formats, with supporting documentation including geologic unit descriptions. The data were adapted from an unpublished map by Aronow (1982) provided by Lamar University.

Use Cases

• Conducting geologic resource evaluation based on the surficial geology data layers.
• Creating environmental impact assessments based on the geologic unit descriptions.
• Performing spatial analysis of depression boundaries (BECRDEP) within the park unit.
• Integrating geologic data into broader park management GIS systems based on the provided map and layer files.

Strengths

• Data conforms to United States National Map Accuracy Standards for a 1:24,000 scale map.
• Includes ancillary documentation with geologic unit descriptions and source map graphics.
• Available in multiple GIS formats, including ESRI file geodatabase and OGC geopackage.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Features have a stated horizontal locational accuracy of within 12.2 meters (40 feet).
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

National Park Service (NPS) Geologic Resources Division (GRD), adapted from Lamar University source map.

Collection Method

Completed as a component of the Geologic Resources Inventory (GRI) program.

Time Range

Source map from 1982.

Freshness

Last updated 2026-03-04 01:03:20.598272; freshness should be verified.

Geography

Beech Creek Unit and vicinity, Big Thicket National Preserve, Texas.