- California68 objects
- North America68 objects
- Northeastern California68 objects
- Northern California68 objects
- Northern Sierras, Northern California68 objects
- The Americas68 objects
- United States68 objects
- Placer County, California51 objects
- CA-Pla-5 or 6, Placer County, California43 objects
- CA-Pla-5, Placer County, California27 objects
- CA-ElD-24, El Dorado County, California17 objects
- Cathedral Rocks, El Dorado County, California17 objects
- El Dorado County, California17 objects
- CA-Pla-6, Placer County, California16 objects
- CA-Pla-8, Placer County, California7 objects
- CA-Pla-7, Placer County, California1 objects