Geologic GIS Map of Bering Land Bridge National Preserve, Alaska

A digital geologic-GIS dataset for the Bering Land Bridge National Preserve and vicinity in Alaska, adapted from U.S. Geological Survey source maps. The dataset is composed of GIS data layers and tables, available in multiple formats including an Esri file geodatabase and an OGC geopackage. It was completed as part of the National Park Service's Geologic Resources Inventory program.

Use Cases

• Visualizing regional geology in Google Earth based on the provided KMZ/KML file.
• Conducting spatial analysis of geologic units and faults using the GIS data layers.
• Referencing detailed geologic unit descriptions contained in the ancillary PDF document.
• Creating custom geologic maps using the provided ArcGIS Pro or QGIS project files.

Strengths

• Provides data in multiple standard GIS formats (Esri geodatabase, OGC geopackage, KMZ/KML).
• Includes supporting project files for ArcGIS Pro and QGIS.
• Contains ancillary documentation with geologic unit descriptions from source maps.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The KMZ/KML format is limited in data layers and access to ancillary table information.

Provenance

Source

U.S. Geological Survey and National Park Service Geologic Resources Inventory program.

Collection Method

Adapted and digitized from existing USGS Open-File Reports and digital databases.

Time Range

Source maps from 1999 and 2010.

Freshness

Last updated 2026-03-11 23:58:10.976236; freshness should be verified.

Geography

Bering Land Bridge National Preserve and vicinity, Alaska.