Mount Washington–Semi Wall, 4 sights is a 7-mile out-and-back in Olallie State Park near Ragnar, WA. The route passes Semi Wall before reaching Mount Washington at the turnaround, 3.5 miles in. It climbs 3,103 ft, with sections as steep as 36% grade, and is mostly dirt. It scores 9/100 on the Ambleway Wildness scale: paved and peopled.
Elevation
0 mi1,348 – 4,416 ft · steepest grade: 36%7.3 mi
Getting there
Trailhead: Unnamed 47.44171, -121.67429
Nearest town Ragnar, WA
Directions
AMBLEWAYwww.ambleway.com
Mount Washington–Semi Wall, 4 sights
7 mi · ▲ 3,103 ft · 3 hr 53 min
Elevation 1,347–4,418 ft
Out & Back · Olallie State Park
Trailhead: 47.44171, -121.67429
Weather Aug 3: Mostly clear, high 72°F / low 47° · precip 0% · wind 5 mph · sunrise 5:48 AM · sunset 8:39 PM
Toilets at the trailhead · Parking lot at the trailhead
- Start at the trailhead, heading W.
- 350 ftContinue straight onto Palouse to Cascades State Park Trail, heading NW.
- 0.1 miBear left onto Mount Washington Trail, heading SW.
- 50 ftPass Semi Wall.
- 0.3 miTurn right onto Amazonian access, heading SW.
- 50 ftSharp right onto Mount Washington Trail, heading W.
- 2.1 miTurn right onto Olallie Trail;Mount Washington Trail, heading S.
- 50 ftContinue straight onto Olallie Trail, heading SW.
- 0.2 miBear left, heading N.
- 0.3 miContinue straight onto Mount Washington Trail, heading SW.
- 0.4 miReach Mount Washington, then turn around and head back the way you came.
- 0.7 miBear right onto Olallie Trail, heading N.
- 0.2 miContinue straight onto Olallie Trail;Mount Washington Trail, heading S.
- 50 ftTurn left onto Mount Washington Trail, heading S.
- 2.1 miSharp left onto Amazonian access, heading NW.
- 50 ftTurn left onto Mount Washington Trail, heading NW.
- 0.3 miBear right onto Palouse to Cascades State Park Trail, heading W.
- 0.2 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
85% dirt7% gravel8% unspecified
Weather
Mostly clearTemperature 72°F47°
Precip0%Wind5 mphUV7Humidity81%
Hourly temperature
75°45°
Sunrise 5:48 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 8:39 PM
Tue
79°57°
Wed
86°63°
Thu
87°61°
Fri
79°52°
Sat
77°51°
Sun
79°52°
Sunset
The best sunset spot on this hike is 3.0 mi in (~140 min). Leave by 6:00 PM for the 8:39 PM sunset. Back at your car by 10:07 PM, after dark — bring a headlamp.
Good to know
- Toilets at the trailhead
- Parking lot at the trailhead
Other ways to reach this destination
More from this trailhead
- Actual Cave–Semi Wall, 5 sights 1 mi · ▲ 403 ft
- Twin Falls (Upper)–Twin Falls (Lower), 5 viewpoints 3 mi · ▲ 966 ft
- Olallie Knob–Change Creek Trail, 3 sights 3.4 mi · ▲ 1,452 ft
- Semi Wall & Twin Falls Trail 4.8 mi · ▲ 1,150 ft
- 5010-350–Change Creek Trail, 3 sights 6.2 mi · ▲ 2,332 ft
- 9023-310–Change Creek Trail, 4 sights 7.1 mi · ▲ 3,149 ft
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