Collection place
- Kalambo Falls, Zambia1 objects
- Kalegaon, Maharashtra State, India1 objects
- Kansas20 objects
- Kanyaka, South Australia1 objects
- Karamoja, Uganda2 objects
- Karkarichinkat, Mali30 objects
- Karlo area, Lassen County, California1,346 objects
- Karonga district, Malawi1 objects
- Kasongo-Maniema, Democratic Republic of the Congo6 objects
- Kaweah River, Tulare County, California4 objects
- Keeler, Inyo County, California3 objects
- Kelsey Creek NNE of Kelseyville, Lake County, California18 objects
- Kelsey Creek, Lake County, California2 objects
- Kelsey, El Dorado County, California1 objects
- Kennett area, Shasta County, California6 objects
- Kentucky162 objects
- Kenwood area, Sonoma Valley, Sonoma County10 objects
- Kenya2 objects
- Kepel, Klamath River, Humboldt County1 objects
- Kerman, Fresno County, California1 objects