Thunder Creek–Fourth of July Pass

Thunder Creek/Fourth of July Pass is a strenuous, 10.5 mile round-trip day hike with 2,300 ft in elevation gain. The trail goes up Thunder Creek before cutting up steeply through forest to Fourth of July Pass.

getting there

Drive SR 20 to Colonial Creek Campground in the North Cascades National Park.

on the trail

Travel from Thunder Arm of Diablo Lake, along Thunder Creek for 1.5 mi. Turn left and take the Fourth of July Trail to Fourth of July Pass.

  • Suitable Activities: Day Hiking
  • Seasons: April, May, June, July, August, September, October, November
  • Weather: View weather forecast
  • Difficulty: Strenuous
  • Length: 10.5 mi
  • Elevation Gain: 2,300 ft
  • 3,600 ft
  • Land Manager: North Cascades National Park
    Ross Lake National Recreation Area
  • Parking Permit Required: None
  • Recommended Party Size: 12
  • Maximum Party Size: 12
  • Maximum Route/Place Capacity: 12
  • Green Trails Diablo Dam No. 48
  • Green Trails Mt Logan No. 49
  • Trails Illustrated North Cascades National Park
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