- Huamachuco (modern town), Huamachuco District, Northern Peru1 objects
- Humboldt County, California1 objects
- Independence Lake, Nevada and Sierra Counties, California1 objects
- Indiana1 objects
- Inscription Rock, Valencia County, New Mexico1 objects
- Italy3 objects
- Jaipur district, Rajasthan, India23 objects
- Japan3 objects
- Java, Indonesia2 objects
- Jemez, Sandoval County, New Mexico1 objects
- Jericho, West Bank, Palestine1 objects
- Johnstone Strait, British Columbia, Canada1 objects
- Kameiros (ancient city), Rhodes3 objects
- Katimin (historic village), Klamath River, Siskiyou County1 objects
- Kepel, Klamath River, Humboldt County1 objects
- Klamath Lake, Klamath County, Central Oregon1 objects
- Klamath River, Humboldt County, California3 objects
- Klamath River, Siskiyou County, California1 objects
- Klazomenai (ancient city), Ionia2 objects
- Laguna, Cibola County, New Mexico1 objects