学科
- Clingmans dome4
- Cumberland mountains4
- Flowerpots4
- Fog4
- Fountain paint pots (yellowstone national park)4
- Geraniums4
- Lake marmo (ill.)4
- Lower geyser basin (wyo.)4
- Maricopa point (ariz.)4
- Mineral deposits4
- Minerals4
- Mud4
- Newfound gap (n.c. and tenn.)4
- Plazas4
- Rain4
- Red clover4
- Roses4
- Sculpture4
- Soho square (london, england)4
- Stairways4