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Subject
- National parks & reserves9
- Steam[remove]9
- Springs8
- Yellowstone National Park8
- Valleys7
- Geysers6
- Mineral deposits6
- Minerals6
- Norris Geyser Basin (Wyo.)4
- Forests3
- Trails & paths3
- Trees3
- Clouds2
- Excelsior Geyser (Yellowstone National Park)2
- Fountain Geyser (Yellowstone National Park)2
- Lakes & ponds2
- Lower Geyser Basin (Wyo.)2
- Midway Geyser Basin (Wyo.)2
- Mountains2
- Rocks2