Sid's Mountain Wilderness
The Sid’s Mountain Wilderness is in the northwest portion of the San Rafael Swell and is named after one of the area’s earliest ranchers, Sid Swasey. Sid’s Cabin was built in the 1920’s and is...
Description from Wilderness Connect (wilderness.net), where the full text continues.

| Designation | Wilderness |
| Managed by | Bureau of Land Management |
| State | Utah |
| Size | 49,130 acres (Wilderness Connect) |
| Designated | 2019, by Congress |
| Center point | 39.0252, -110.7913 |
| Night sky | Very dark ground, a faint glow at most (Black Marble reading 30) |
Boundary map
Boundary, simplified to about 0.005 degrees Federal campground
The outline is the agency boundary simplified for display, so small parcels and inholdings may not show. The agency page has the authoritative map.
Where to camp
No federal campground sits inside the boundary. 4 are within ten miles of it. Nearest first. Distances are from the campground point to the boundary edge, from the Campsite Atlas index.
Explore
Nearby on the other atlases
- 0.3 miSan Rafael Bridge ↗Castle Dale, UT
- 4.7 miDenver and Rio Grande Lime Kiln ↗Cleveland, UT
- 12 miCastle Dale Bridge ↗Castle Dale, UT
- 12 miSeeley, Justis Wellington Ii, House ↗Castle Dale, UT
- 12.1 miCastle Dale School ↗Castle Dale, UT
- 12.1 miChristensen, Paul C., House ↗Castle Dale, UT
- 12.3 miCastle Dale High School Shop ↗Castle Dale, UT
- 12.7 miJohansen, Peter, House ↗Castle Dale, UT
Landmarks are listed first, then by distance from the boundary.
Reference
Questions people ask
How big is Sid's Mountain Wilderness?
49,130 acres.
Source: Wilderness Connect
Who manages Sid's Mountain Wilderness?
The Bureau of Land Management.
Source: Wilderness Connect
What state is Sid's Mountain Wilderness in?
Utah.
Source: Wilderness Connect
When was Sid's Mountain Wilderness designated?
Congress designated it in 2019.
Source: Wilderness Connect
Can I camp at Sid's Mountain Wilderness?
No federal campground sits inside the boundary. The nearest is Sids Mountain Wilderness - The Wedge, 0.1 miles out. 4 in all are within ten miles. Camping inside a wilderness is usually allowed away from roads, with no facilities; the managing agency page has the permit rules.
Source: Where to camp
How do I get to Sid's Mountain Wilderness?
A point inside the boundary is at 39.025, -110.791. The official page carries directions and the office address.
Source: Wilderness Connect
How dark is the night sky at Sid's Mountain Wilderness?
NASA’s Black Marble night-lights image reads 30 on a 0 to 255 scale at the center point, very dark ground, a faint glow at most.
Source: NASA Black Marble
Are there historic places near Sid's Mountain Wilderness?
10 National Register listings within 15 miles, including San Rafael Bridge and Denver and Rio Grande Lime Kiln.
Source: Register Atlas
Sources
- Boundary, name, acreage, designation year, states and description: Wilderness Connect.
- Campgrounds: the Campsite Atlas index of federal campgrounds, matched to this boundary at build time.
- Trailheads and sites: the Forest Service Recreation Opportunities layer, points inside the boundary.
- Night sky: NASA Black Marble (VIIRS, 2016 composite) sampled at zoom 6 around the center point.
- Weather, alerts, air quality, river flow and earthquakes load live in your browser from NWS, AirNow, USGS and iNaturalist when you open the page.