Digital Geologic Map of John Muir National Historic Site, California

A digital geologic-GIS dataset for John Muir National Historic Site and its vicinity in California. The data were completed as part of the National Park Service's Geologic Resources Inventory program, adapted from a 1995 California Department of Conservation source map. It is available in multiple GIS formats including a file geodatabase, OGC geopackage, and KMZ/KML for Google Earth.

Use Cases

• Visualizing geologic unit distributions based on the provided GIS data layers.
• Analyzing spatial relationships between faults, folds, and contacts based on the map's geologic features.
• Integrating park-specific geologic data into regional models based on the source map from the California Department of Conservation.

Strengths

• Data is available in multiple standard GIS formats (file geodatabase, geopackage, KMZ/KML) for flexibility.
• Includes supporting documentation such as geologic unit descriptions and a user-friendly FAQ metadata file.
• Derived from an authoritative source map published by the California Department of Conservation, Division of Mines and Geology.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The KMZ/KML format version is limited in data layers presented and lacks access to ancillary table information.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

National Park Service, Geologic Resources Division, adapted from California Department of Conservation, Division of Mines and Geology.

Collection Method

Digitized and adapted from a source geologic map (Haydon, 1995) as part of the Geologic Resources Inventory program.

Time Range

Source map from 1995.

Freshness

Last updated 2026-03-04 01:03:11.023979; freshness should be verified.

Geography

John Muir National Historic Site and vicinity, California, USA.