Digital Surficial Geologic Map of the Beaumont Unit, Big Thicket National Preserve, Texas

A GIS dataset from the National Park Service's Geologic Resources Inventory program, adapted from an unpublished 1982 map by Aronow of Lamar University. The data includes geologic unit descriptions and is available in multiple GIS formats, including an ESRI file geodatabase and an OGC geopackage. Based on a source map scale of 1:24,000, features have a horizontal locational accuracy within 12.2 meters or 40 feet.

Use Cases

• Modeling surficial geology and soil distribution based on the provided geologic unit layers.
• Conducting spatial analysis for conservation planning based on the mapped geologic features.
• Integrating geologic base layers with other environmental datasets for the Big Thicket National Preserve.
• Creating educational or interpretive maps using the provided geologic unit descriptions and ancillary information.

Strengths

• Includes ancillary documents with geologic unit descriptions and source map graphics.
• Data is available in multiple standard GIS formats (ESRI geodatabase, OGC geopackage, shapefile upon request).
• Horizontal locational accuracy is specified as within 12.2 meters based on the 1:24,000 source map scale.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is adapted from an unpublished 1982 source map, which may not reflect current conditions.
• Row count and specific data volume are unknown, which may limit suitability assessment.

Provenance

Source

National Park Service (NPS) Geologic Resources Division (GRD), adapted from a Lamar University map by Aronow (1982).

Collection Method

Digitized and compiled as part of the Geologic Resources Inventory (GRI) program.

Time Range

Source map from 1982.

Freshness

Last updated 2026-03-04 01:04:33.226329; freshness should be verified.

Geography

Beaumont Unit and vicinity, Big Thicket National Preserve, Texas, USA.