AMBLEWAY Wildest hikes

B-1400 & B-1410 via Larch Mountain West / Upper Twin Peaks

11.8 mi · ▲ 1,163 ft · 4 hr 31 min

B-1400 & B-1410 via Larch Mountain West / Upper Twin Peaks is an 11.8-mile out-and-back near Sine, WA. It climbs 1,163 ft, with sections as steep as 19% grade, and is mostly dirt. It scores 79/100 on the Ambleway Wildness scale: genuinely wild.

Elevation

0 mi919 – 1,805 ft · steepest grade: 19%11.9 mi

Getting there

Trailhead: B-1010 46.98625, -123.20587
Nearest town Sine, WA
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Directions

AMBLEWAYwww.ambleway.com

B-1400 & B-1410 via Larch Mountain West / Upper Twin Peaks

11.8 mi · ▲ 1,163 ft · 4 hr 31 min

Elevation 917–1,804 ft

Out & Back

Trailhead: B-1010 · 46.98625, -123.20587

Weather Aug 4: sunrise 5:57 AM · sunset 8:43 PM

  1. Start on B-1010, heading E.
  2. 0.3 miTurn left onto Larch Mountain West / Upper Twin Peaks, heading E.
  3. 3.8 miTurn right onto B-1410, heading E.
  4. 100 ftContinue straight onto B-1400, heading E.
  5. 1.9 miReach B-1400, then turn around and head back the way you came.
  6. 1.9 miContinue straight onto B-1410, heading W.
  7. 50 ftTurn left onto Larch Mountain West / Upper Twin Peaks, heading W.
  8. 3.8 miTurn right, heading W.
  9. 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 map, photos and weather for this hike: www.ambleway.com/hikes/b-1400-b-1410-out-back-19-km

Trail surface

64% dirt36% gravel

Weather

Sunrise 5:57 AMSunset 8:43 PM

Sunset

The best sunset spot on this hike is 0.0 mi in (~1 min). Leave by 8:22 PM for the 8:43 PM sunset. Back at your car by 8:59 PM — 18 min before dark. Trailhead visible from the viewpoint

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