Digital Geologic Map of Trail Canyon Quadrangle, Colorado at 1:24,000 Scale

A National Park Service Geologic Resources Inventory digital map of the Trail Canyon Quadrangle in Colorado, adapted from a 1999 geologic map by Griffitts. The dataset includes GIS data layers and tables in multiple formats, such as a file geodatabase and geopackage, along with supporting documentation. It was produced by the NPS Geologic Resources Division as part of the Inventory and Monitoring program.

Use Cases

• Conduct geological analysis based on the provided geologic unit descriptions and contacts.
• Perform spatial analysis of geological features based on the GIS data layers.
• Integrate geological data into regional models based on the map's 1:24,000 scale and locational accuracy standards.

Strengths

• Includes ancillary documentation with geologic unit descriptions and source map information.
• Provides data in multiple GIS formats, including ESRI geodatabase and OGC geopackage.
• Based on a source map with a defined scale of 1:24,000.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Users are cautioned that features have a horizontal locational accuracy of approximately 12.2 meters.

Provenance

Source

National Park Service, Geologic Resources Inventory (GRI) program.

Collection Method

Adapted from a geologic map by Griffitts (1999).

Time Range

Source map from 1999.

Freshness

Last updated 2026-03-04 00:56:35.842996; freshness should be verified.

Geography

Trail Canyon Quadrangle, Colorado, USA.