Facility · Wyoming ·
Managed by the Bureau of Land Management
Rock Springs Field Office (Bureau of Land Management WY) · Open Access
Simpson's Hollow is Identified as a significant location during conflict called "The Utah War". U.S. soldiers with supply wagons were travelling to Utah to enforce federal laws when they were intercepted by members of the Navoo Legion. It was reported that the supply wagons were burned and the Navoo Legion returned to Utah. This is a fee-free site. This site is ADA accessible.
Take State Highway 28 west of Farson 11 miles. The site is a pullout along the National Historic Trails Auto Tour Route.
42.01804, -109.59085 · 42°1'4.9"N 109°35'27.0"W
Typically 83°F in Jul, down to 28°F in Jan.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 28 | 30 | 43 | 54 | 64 | 74 | 83 | 81 | 71 | 57 | 41 | 30 |
| Low °F | -4 | -2 | 14 | 22 | 32 | 40 | 45 | 44 | 33 | 22 | 10 | -2 |
| Precip in | 0.3 | 0.3 | 0.5 | 0.8 | 1.5 | 1.1 | 0.5 | 0.7 | 0.8 | 0.6 | 0.3 | 0.4 |
1991–2020 averages from the nearest NOAA station, 11.7 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.
no fee
From Recreation.gov, which is not always current. The operator's own page is the authority on what you will be charged.
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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