This report, USGS SIM 2899, consists of the geologic map database (GIS database in ArcInfo coverage, shapefiles, and grid formats) to accompany the printed version of Geologic map of Lassen Volcanic National Park and vicinity, California, U.S. Geologic Survey Scientific Investigations Map SIM 2899. Printable files for the geologic map can be downloaded below.

Downloadable map files:

A PDF version of SIM 2899 Sheet 1 (58" x 42"; 23.9 MB)

A PDF version of SIM 2899 Sheet 2 (58" x ~39"; 258 KB)

A PDF version of SIM 2899 Sheet 3 (~56" x ~39"; 61.6 MB)

A PDF version of the accompanying pamphlet SIM 2899 Pamphlet (116 pages; 2.8 MB)

Printed copies of the map (SIM 2899) and the accompanying pamphlet, including this database, are also available from: