Crosby Mountain

A strenuous scramble east of Index between Highway 2 and Money Creek with territorial views of the Skykomish valley.

getting there

Drive US 2 to Money Creek Campground (5.5 miles east of Baring). Drive past the campground, cross the railroad tracks and continue to road Forest Road 6420. Turn right onto road Forest Road 6420 and drive about 3 miles to a clearcut on the right. Park at the east edge of the clearcut (1,600 ft).

approach & ascent

Hike straight up in the old growth forest on the east side of the clearcut following an overgrown logging road. Travel north through second growth timber--use the gully on east as a handrail but do not cross it.  At about 3,200 ft hike northwest and gain a  narrow ridge, arriving again in timber at 3,600 ft. From there head north to the 4,200-foot open ridge that leads to Cement Lake. Note there is a faint path that skirts a rock face and Point 4494 on the south (left) side of the ridge. After passing Point 4494, descend to a northwest gully and at the bottom of the gully, contour west to Cement Lakes. From the lakes, follow the ridge to the basin (or boulder field) below Crosby Mountain. Drop into the basin (100 feet of elevation loss) and head for the saddle on the southwest ridge. Follow the southwest ridge to Boner Lake and then northwest to summit.


  • This is named Crosby Mountain on the USGS and Green Trails maps, but Mount Crosby in the Cascade Alpine Guide.
  • Suitable Activities: Scrambling
  • Seasons: May, June, July, August, September, October
  • Weather: View weather forecast
  • Difficulty: Strenuous 4, Technical 3
  • Length: 8.0 mi
  • Elevation Gain: 5,600 ft
  • 5,520 ft
  • Land Manager: Mount Baker-Snoqualmie National Forest
    Skykomish Ranger District (MBSNF)
  • Parking Permit Required: None
  • Recommended Party Size: 12
  • Maximum Party Size: 12
  • Maximum Route/Place Capacity: 12
  • Green Trails Skykomish No. 175
  • USGS Grotto
  • Green Trails Alpine Lakes West (Stevens Pass) No. 176S
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