Lost Lake Mainline

2.8 mi · ▲ 518 ft · 1 hr 12 min

Lost Lake Mainline is a 2.8-mile out-and-back near Lake Roesiger, WA. It climbs 518 ft, with sections as steep as 18% grade. It scores 70/100 on the Ambleway Wildness scale: backcountry feel.

Elevation

0 mi443 – 932 ft · steepest grade: 18%2.8 mi

Getting there

Trailhead: Lost Lake Mainline 47.94990, -121.88880
Nearest town Lake Roesiger, WA

Directions

AMBLEWAYwww.ambleway.com

Lost Lake Mainline

2.8 mi · ▲ 518 ft · 1 hr 12 min

Elevation 441–933 ft

Out & Back

Trailhead: Lost Lake Mainline · 47.94990, -121.88880

Weather Aug 4: sunrise 5:49 AM · sunset 8:40 PM

Bikes allowed on the whole route · Parking lot at the trailhead

  1. Start on Lost Lake Mainline, heading E.
  2. 1.4 miReach the turnaround, then head back the way you came.
  3. 1.4 miArrive back at the trailhead.

Each distance is the walk from the previous step. Tap a step for a map of its junction.

Weather

Sunrise 5:49 AMSunset 8:40 PM

Sunset

The best sunset spot on this hike is 1.3 mi in (~48 min). Leave by 7:32 PM for the 8:40 PM sunset. Back at your car by 9:29 PM, after dark — bring a headlamp.

More sunset hikes nearby

Good to know

  • Bikes allowed on the whole route
  • Parking lot at the trailhead

Other ways to reach this destination

More from Lost Lake Mainline Trailhead