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Start Over Media available image Collection place Northeastern California Collector Francis A. Riddell Materials Basalt (basic igneous rock)

1. Core hammerstone fragment

Museum number:
1-148202
Object class:
Hammerstones
Collector:
Francis A. Riddell
Collection place:
CA-Las-7, Karlo area, Lassen County
Collection date:
1955

2. Hammerstone

Museum number:
1-197565
Object class:
Hammerstones
Collector:
Francis A. Riddell
Collection place:
CA-ElD-44, El Dorado County, California
Collection date:
March 1956

3. Hammerstone fragment

Museum number:
1-197984
Object class:
Hammerstones
Collector:
Francis A. Riddell
Collection place:
CA-Las-68, Secret Valley, Lassen County
Collection date:
August 31, 1955

4. Hammerstone fragment

Museum number:
1-115031
Object class:
Hammerstones
Collector:
Francis A. Riddell and William S. Evans Jr.
Collection place:
CA-Las-48, Lassen County, California
Collection date:
July 23, 1948

5. Hammerstone fragment

Museum number:
1-93632
Object class:
Hammerstones
Collector:
Francis A. Riddell and Richard Shutler Jr.
Collection place:
CA-Las-83, Lassen County, California

6. Hammerstone fragment

Museum number:
1-115158
Object class:
Hammerstones
Collector:
Francis A. Riddell and William S. Evans Jr.
Collection place:
CA-Las-52, Lassen County, California

7. Pestle

Museum number:
1-201850
Object class:
Ground stone and Pestles
Collector:
Francis A. Riddell
Collection place:
CA-Las-100, Mud Flat, Lassen County
Collection date:
September 13, 1954