Fourth of July Pass Trail

Q: Do I need previous hiking experience?

Yes. This is not beginner terrain. You should be comfortable with steep grades and altitude. Test yourself on lower-elevation hikes first.

Q: What if I'm not acclimatized to altitude?

You'll feel it at 5,000 feet. Take it slow, drink constantly. Altitude sickness is real—if you develop a headache or nausea, descend immediately.

Q: Is the suspension bridge scary?

It sways and makes noise. It's safe but unsettling. One person at a time, hold the rails, and don't look down if you have vertigo.

Q: What's the weather risk?

Afternoon thunderstorms develop fast at elevation. Lightning kills. Turn back if clouds build after 2 PM. Start early, summit by early afternoon.

Q: Can I do this with trekking poles only?

Yes, if the pass is snow-free (mid-July onward). Before that, you need an ice axe and crampons. Check conditions before departing.

Distance

10 mi

Elevation Gain

2,300 ft

Est. Time

5-7 hours if you're fit and acclimatized; 8+ hours if you're gaining altitude for the first time.

Route Type

Out-and-back

Dogs Allowed

Best Season

Mid-July to early September.

Overview

About This Trail

This is a moderately strenuous alpine hike with 2,300 feet of elevation gain over 10 miles roundtrip. You'll trek through old-growth forest to a suspension bridge over Thunder Creek at mile 2, then climb steeply to Fourth of July Pass for mountain and glacier views. Terrain becomes exposed and unpredictable at elevation—weather is the primary hazard. Fit hikers with altitude experience can manage it, but this is not a casual forest walk.

Highlights

Difficulty Level

Lung buster

Trail Highlights

The Alpine payoff is Fourth of July Pass itself—sit at the ridge and let your eyes adjust. South view is Glacier Peak, east is the Cascades ridgeline, north is Mount Baker. The glacier visible from the pass is the reward; it clarifies the moment you stop moving and breathe.

Insider Tips

• The suspension bridge sways in wind. Keep it controlled and deliberate—one person at a time. • The false summit at mile 4 will mock you. The real pass is 0.5 miles higher—keep pushing. • Descent is steeper and longer than ascent. Use poles, descend slowly, watch for loose rocks. • Sunbake on the rocks at the pass rather than pushing further—views are best where you stand. • Refill water at Thunder Creek—the alpine section is bone dry.

Best Season to Hike

Mid-July to early September.

Hiking Tips

Bring 2-3L water minimum—high elevation means rapid dehydration.
Trekking poles are mandatory for the descent—knee impact on steep grade is real.
Wear sun protection: hat, sunscreen, long sleeves—exposed alpine terrain offers zero shade.
Make noise constantly on the trail—bears are present (100-yard safe distance).
Check weather the morning of—afternoon thunderstorms develop rapidly at elevation.
Start well before noon to avoid lightning exposure at the summit.

Family Info

Not suitable for young children. Steep descent requires sure footing and solid core strength. Altitude is significant—kids under 10 struggle above 5,000 feet. Supervise closely near creek crossings and steep drop-offs.

What Hikers Say

Hikers report the 2,300-foot climb is relentless but the alpine payoff is genuine. Weather is the main variable—clear morning starts are critical. Most consider it a life-tier hike if you're acclimatized and start early.

Details

Trail Specifications

Distance: 10 miles

Elevation Gain: 2,300 ft

Duration: 5-7 hours if you're fit and acclimatized; 8+ hours if you're gaining altitude for the first time.

Difficulty: Lung buster

Route Type: Out-and-back

Surface: Rocky, rooted forest floor transitioning to alpine scree and loose talus.

Getting There

Trailhead: South end of Colonial Creek Campground parking area.

Fills Up: By 8 AM on weekends, especially July-August.

Restrooms at trailhead

Requirements

Permit Required

No permits required, but check current conditions at the North Cascades Visitor Center before starting.

Fees: No entrance fee. America the Beautiful annual pass ($80) covers all federal recreation sites if purchased.

Shuttle Available

None required—self-drive to Colonial Creek Campground.

Trail Rules

Dogs: Yes, leashed only, for the first 7 miles and to the pass.

Biking: No.

Trail Markers: Well-marked and well-worn. Orange blazes above treeline.

Map/GPS recommended

Trail Features

Conditions & Safety

Water: Filter at Thunder Creek near the 2-mile suspension bridge crossing. No reliable sources above 5,000 feet.

Shade: Heavy shade in old-growth forest (miles 0–5). Full sun and exposed on alpine section (miles 5–10).

Cell Service: Unreliable. Assume zero coverage above 5,000 feet. Carry a satellite communicator or personal locator beacon.

Hazards:

Lightning risk on exposed ridge during afternoon storms—turn back if clouds build after 2 PM. Creek can be high and swift with snowmelt (June). Steep sections with loose scree on descent increase fall risk. Bears are present—store food in bear-proof canisters and make constant noise.

Emergency: North Cascades Visitor Center: (206) 386-4495. Emergency: 911 (may not reach at high elevations). Nearest hospital: Marblemount Hospital, ~45 minutes by vehicle.

Crowd Info

Typical Crowds: Moderate to heavy on summer weekends; lighter on weekdays.

Peak Times: July-August weekends, 10 AM to 2 PM.

Accessibility & Family

Accessibility:

Rooty and steep. Requires good fitness and altitude acclimatization. Not wheelchair accessible.

Family Notes:

Nearby Facilities

Colonial Creek Campground has water, restrooms, and campsites. Nearest gas and supplies: Marblemount, 35 miles south.

What Hikers Say

FAQs

Are there bears on this trail?

Yes. Keep 100 yards away if seen. Make noise constantly, store food in bear-proof canisters, and don't hike alone. Bears are most active at dusk.

Do I need previous hiking experience?

What if I'm not acclimatized to altitude?

Is the suspension bridge scary?

What's the weather risk?

Can I do this with trekking poles only?

🏞️ National Park Service 📝 YourNPGuide Editorial

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