Mill A Basin Trail & Porter Fork Trail via Desolation Trail is a 13.8-mile out-and-back in Mount Olympus Wilderness near Pine Lodge, UT. It climbs 4,894 ft, with sections as steep as 30% grade, and is mostly dirt. It scores 52/100 on the Ambleway Wildness scale: backcountry feel.
Elevation
0 mi6,887 – 9,384 ft · steepest grade: 30%14.1 mi
Getting there
Trailhead: Butler Fork Trailhead 40.64931, -111.66168
Nearest town Pine Lodge, UT
Directions
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Mill A Basin Trail & Porter Fork Trail via Desolation Trail
13.8 mi · ▲ 4,894 ft · 7 hr 3 min
Elevation 6,887–9,384 ft
Out & Back · Mount Olympus Wilderness
Trailhead: Butler Fork Trailhead · 40.64931, -111.66168
Weather Sep 4: sunrise 6:58 AM · sunset 7:56 PM
No dogs on part of this route · Parking lot at the trailhead
- Start on Butler Fork Trail, heading NW.
- 0.5 miBear left onto Mill A Basin Trail, heading NW.
- 1.3 miTurn left onto Desolation Trail, heading NW.
- 1.1 miTurn right onto Baker Pass Trail, heading W.
- 50 ftTurn left onto Desolation Trail, heading SW.
- 1.9 miBear right onto Porter Fork Trail, heading W.
- 2.2 miReach Mill A Basin Trail, then turn around and head back the way you came.
- 2.2 miBear left onto Desolation Trail, heading S.
- 1.9 miTurn right onto Baker Pass Trail, heading N.
- 50 ftTurn left onto Desolation Trail, heading N.
- 1.1 miTurn right onto Mill A Basin Trail, heading SE.
- 1.3 miBear right onto Butler Fork Trail, heading E.
- 0.4 miArrive back at the trailhead.
Each distance is the walk from the previous step. Tap a step for a map of its junction.
Trail surface
100% dirt
Weather
Sunrise 6:58 AMSunset 7:56 PM
Sunset
The best sunset spot on this hike is 4.4 mi in (~170 min). Leave by 4:45 PM for the 7:56 PM sunset. Back at your car by 10:04 PM, after dark — bring a headlamp.
Good to know
- No dogs on part of this route
- Parking lot at the trailhead
More from Butler Fork Trailhead Trailhead
- Circle All Peak & Mill A Basin Trail 3.3 mi · ▲ 1,559 ft
- Dog Lake & Butler Fork Trail via Desolation Trail 4.8 mi · ▲ 1,740 ft
- Reynolds Peak–Dog Lake, 4 sights 5.7 mi · ▲ 2,366 ft
- Spring Water Pipeline Leak–Beaver Pond, 5 sights 9.9 mi · ▲ 3,217 ft
- Desolation Lake–Dog Lake, 4 sights 10.9 mi · ▲ 3,205 ft
- Mill B Overlook & Mill A Basin Trail via Desolation Trail 13.7 mi · ▲ 4,604 ft
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