The loose sheets document the field work of Robert J. Horodyski in Montana, September 2 - [undated] 1974, while he worked for the University of California, Los Angeles. Entries vary in content and structure. Entries are sometimes headed with date and location, followed with descriptions of stromatolites (measurements, characteristics), samples taken, photographs taken, sketches of terrain, and graphs. Locations are across Glacier National Park.
Many of SIA's holdings are located off-site, and advance notice is recommended to consult a collection. Please email the SIA Reference Team at osiaref@si.edu.
