- Cowboys--Colorado--Pictorial works1
- Cradleboards1
- Dams--California1
- Dance--New Mexico1
- Donkeys--New Mexico1
- Draft animals--California1
- Electric railroads--Cars1
- Flowers1
- Footbridges1
- Frontier and pioneer life--New Mexico1
- Fruit trees1
- Geysers--Wyoming1
- Gold mines and mining --Colorado1
- Gold mines and mining--South Dakota--Pictorial works1
- Historic sites --United States --Pictorial works1
- Hot springs--Wyoming1
- Hotel lobbies--Wyoming1
- Hotels --California --Riverside1
- Hotels--Wyoming1
- Hydraulic mining--Colorado1