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© 2026 Roaming.Camp · Data from NPS, Recreation.gov, BLM, USFS, NWS, and the FCC.Operating on ceded ancestral land.Photography via Unsplash.

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Hike

Thunder Mountain Access

1,540 ft of climbing
Camp 2 mi away

2.4 mi out & back · 1,540 ft gain · 1,585 ft high point · Hard

AK · U.S. Forest Service

About Elevation Highlights Map Camp near here More hikes

About this hike

Thunder Mountain Access climbs 1,540 feet over 2.4 miles out and back near Mendenhall Valley.

Elevation

1,540 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

2.1 mi from the trailhead
Mendenhall Campground
Campground · AK

More hikes nearby

Ranked the same way, within twenty-five miles.

3 mi from you
Nugget Falls Trail
- Ends at Nugget Falls
- Inside Tongass National Forest
- Camp under a mile away
1.7 mi out & back · Easy
Tongass National Forest · Camp under a mile away

Out: 1,530 ft up, returns the same way. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Nearby reading

Adair-Kennedy Memorial Park
Rudy-Kodzoff House
Mendenhall Valley, Juneau

Map

The route at the trailhead. Drag with two fingers, or hold a key to zoom.

Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Download the trail and feature data.

At a glance

Length: 2.4 mi
Shape: Out & back
Gain: 1,540 ft round trip
High point: 1,585 ft
Low point: 45 ft
Difficulty: HardFrom 2.4 mi and 1,540 ft of climbing, with steep sections
Managed by: U.S. Forest Service
State: AK
Camps within 15 mi: 9
Trailhead: 58.3828° N · 134.5647° W

Get directions Open the map

2.2 mi from the trailhead

Sítʼ Yá Hítʼ Cabin

Campground · AK

5.1 mi from the trailhead

John Muir Cabin

Campground · AK

3 mi from you

East Glacier Trail

Ends at AJ Falls
Inside Tongass National Forest
Camp under a mile away

2.6 mi loop · 641 ft gain · Moderate

Tongass National Forest · Camp under a mile away

Admiralty Cove to N. Young LK

Ends at Young Lake
Inside Kootznoowoo Wilderness
Camp under a mile away

8.4 mi out & back · 897 ft gain · Moderate

Kootznoowoo Wilderness · Camp under a mile away

Moraine Ecology Trail

Ends at Mendenhall Lake
Inside Tongass National Forest
Camp under a mile away

1.4 mi loop · 101 ft gain · Easy

Tongass National Forest · Camp under a mile away

Trail of Time

Ends at Mendenhall Lake
Inside Tongass National Forest
Camp under a mile away

1.0 mi out & back · 194 ft gain · Easy

Tongass National Forest · Camp under a mile away

Photo Point Trail

Ends at Mendenhall Lake
Inside Tongass National Forest
Camp under a mile away

0.3 mi out & back · 17 ft gain · Easy

Tongass National Forest · Camp under a mile away

More like this

Hikes that read like this one, wherever they are.

Thunder Mountain Historic
- Near Lake Mountain
- 7,264 ft of climbing
- Camp 2 mi away
21.6 mi out & back · 7,264 ft gain · Very hard
Idaho · Camp 2 mi away
West Glacier Trail
- Passes Mendenhall Lake
- Inside Tongass National Forest
- 1,612 ft of climbing
6.3 mi out & back · 1,612 ft gain · Hard
Tongass National Forest · Camp under a mile away
Heintzleman Ridge Trail
- Summits Thunder Mountain
- 2,819 ft of climbing
- Camp 4 mi away
5.0 mi out & back · 2,819 ft gain · Very hard
AK · Camp 4 mi away
Mt. Mcginnis Trail
- Passes Mendenhall Lake
- Inside Tongass National Forest
- 4,523 ft of climbing
9.6 mi out & back · 4,523 ft gain · Very hard
Tongass National Forest · Camp under a mile away

Signal

Cell coverage here

VerizonLTE · Excellent
AT&TLTE · Good

FCC coverage data · signal varies in remote terrain

Weather

7-day forecast

Tue46°40°Light Rain Likely
Wed46°40°Light Rain
Thu45°38°Light Rain
Fri44°36°Light Rain
Sat43°32°Light Rain Likely
Sun41°33°Light Rain Likely
Mon41°Light Rain Likely

Tue: Light Rain Likely · wind 5 to 10 mph E

National Weather Service · refreshed hourly