Facility · Wyoming ·
Managed by the USDA Forest Service
Bighorn National Forest (NF) · Open Access
Fallen City Interpretive Site sits along the Bighorn Scenic Byway.
Fallen City
In the process of uplift which created the Bighorn Mountains, faults and fractures formed in the rocks. The thick layers of limestone in this area were fractured parallel to the valley. When a section of the Earth’s crust sank, huge chunks broke loose from a layer of rock, resulting in the massive boulder field before you. Because of the geometric shapes of the rocks, the boulders can be imagined as the toppled buildings of a “fallen city.”
From Dayton, take Hwy 14 west for about 9 miles. Pullout is on the left side of the road.
44.80503, -107.33207 · 44°48'18.1"N 107°19'55.5"W
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | — | — | — | — | — | — | — | — | — | — | — | — |
| Low °F | — | — | — | — | — | — | — | — | — | — | — | — |
| Precip in | 1.5 | 1.5 | 2.3 | 3.4 | 4.5 | 2.7 | 1.4 | 1.4 | 2.1 | 2.5 | 1.6 | 1.3 |
1991–2020 averages from the nearest NOAA station, 3.8 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.
Recreation.gov last updated this record on 2026-02-25.
Facility information and photographs from Recreation.gov (RIDB). SpotOpened is not affiliated with Recreation.gov or any federal agency.
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