- P1231301
- P1231299
- P1231298
- P1231297
- P1231296
- P1231295
- P1231294
- P1231293
- Outer Entrance
- North Dakota
As seen from the train - As seen from the train - Inner Entrance
- Eastern Montana Sunset III
As seen from the train - As seen from the train - Eastern Montana Sunset II
As seen from the train - As seen from the train - Eastern Montana Sunset I
As seen from the train - As seen from the train - David discovers tree wells