Topic
- Discoveries in geography. 1
- Donkeys. 1
- Electric lines--Poles and towers 1
- Electric lines--Poles and towers. 1
- Erosion 4
- Fences. 3
- Fertilizer industry. 1
- Fertilizers. 1
- Fishing 1
- Footbridges. 2
- Geographical Surveys West of the 100th Meridian (U.S.) 6
- Gold mines and mining. 2
- Horses 2
- Horses. 1
- Hot springs 2
- Human settlements 2
- Indians of North America. 2
- Lakes 1
- Lakes. 1
- Landscape photography. 151