Collection place
- Tōkai region, Chubu region, Honshu12 objects
- North Kantō, Kanto region, Honshu11 objects
- Southeast Asia10 objects
- Southwestern United States10 objects
- Calaveras County, California9 objects
- Kansai region, Honshu, Japan9 objects
- Kyūshū region, Japan9 objects
- Niigata Prefecture, Koshin'etsu region, Chubu region9 objects
- Southern Kyūshū, Kyushu region, Japan9 objects
- Ōnuma District, Fukushima Prefecture, South Tohoku9 objects
- Humboldt County, California8 objects
- Round Valley, Mendocino County, California8 objects
- Southern California8 objects
- Africa7 objects
- Aomori Prefecture, North Tohoku, Tohoku region7 objects
- Eastern California7 objects
- Klamath River, Humboldt County, California7 objects
- Luzon island group, Philippines7 objects
- Madera County, California7 objects
- Minamiaizu District, Fukushima Prefecture, South Tohoku7 objects