Trail

Hike up Tanalian Mountain

Trail
A woman stands on top of a rocky mountain looking out towards the turquoise water of Lake Clark

This is a steep alpine grind: 3,250 feet in 2.5 miles over muddy, slippery, rocky terrain with scrambling required. Not a casual stroll—you'll earn every step. Reward: panoramic views of Lake Clark and surrounding mountains from the 3,900-foot summit, plus tundra and geology you won't see elsewhere. Bring water, layers, and weather protection; this is serious business.

Quick facts

Distance Miles
2.5
Route Type
Out-and-back
Difficulty Level
Strenuous
Elevation Gain Feet
3250

Trail profile

Distance Miles
2.5
Route Type
Out-and-back
Difficulty Level
Strenuous
Elevation Gain Feet
3250
Estimated Time
4-6 hours to summit if fit; 7-8 hours round trip with descent safety breaks.
Trail Surface
Muddy, slippery, and rocky with scrambling required.
Trail Features
  • Lake Clark panoramic views
  • Alpine tundra terrain
  • Rocky scrambling sections
  • High-elevation summit
  • Mountain vistas
Trail Highlights
Panoramic 360-degree views of Lake Clark and surrounding mountain peaks from the 3,900-foot summit.

Trailhead & access

Trailhead Location
Port Alsworth, Alaska
Shuttle Required
0
Shuttle Details
Port Alsworth is not connected to the road system. Access is by float plane or water transport only. Coordinate your return transport before departing.

Permits & conditions

Permit Details
No permits required. Know bear country protocols: store food properly, make noise on trail, maintain 100-yard distance from bears.
Fees
No entrance fee. America the Beautiful annual pass ($80) optional; covers all federal recreation sites.
Trail Status
Typically open
Seasonal Closures
Winter (November-March) impassable due to snow. Visitor services limited Labor Day through Memorial Day.

Facilities & rules

Restrooms At Trailhead
0
Water Sources
No established water sources on trail. Carry all water needed. If emergency, water can be filtered from creeks if available, but assume dry trail.
Accessibility
Trail ascends steeply from 650 ft to 3,900 ft in 2.5 miles. Surface is muddy, slippery, and rocky. Scrambling required on upper sections. Not wheelchair or mobility-aid accessible.

Safety & strategy

Hazards
  • Bears
  • Scrambling with exposed terrain
  • Muddy/slippery surface
  • Rapid weather changes
  • Cold at summit
  • Wind exposure
Hazard Details
Steep scrambling sections with loose rock and exposure. Bears frequent the area—make noise constantly and maintain 100-yard distance. Muddy and slippery rocks create slip hazard, especially on descent. Weather changes rapidly; rain, wind, and sudden cold are common. Altitude exposure; acclimate before pushing hard.
Best Season
Summer (June-August)
Best Time To Visit
Late June through early September. Summer offers the most stable weather—days are long and conditions most predictable. Start by 6 AM to beat afternoon storms common in Southwest Alaska.
Tips Advice
  • Bring 2L water minimum—steep ascent and high altitude drain fast.
  • Layer up; summit is cold and windy even in summer.
  • Rain gear is non-negotiable; Alaska weather strikes anytime.
  • Trekking poles prevent slides on muddy descent.
  • Make noise constantly—bears in area; maintain 100-yard distance from any sighting.
  • Tight boots prevent ankle rolls on scramble sections.

More details

Park Area
Port Alsworth
Trail Markers
Route-finding straightforward for first section; upper scramble sections less marked. Cairns may guide upper trail.
Dogs Allowed
Pets allowed but strongly discouraged. Lake Clark is prime bear and moose habitat. If brought, keep leashed at all times.
Shade Level
Full sun. Alpine exposure means no shade. Hat and sunscreen mandatory.
Map Recommended
1
Snow Dates
November through March; winter ascent dangerous.
Mud Season
Spring snowmelt (April-June) creates muddy conditions.
Bug Season
Mosquitoes peak mid-June through July in Alaska. Bring insect repellent.
Insider Tips
  • The false summit at Mile 2 will trick you—many bail here. Keep pushing; real views begin after.
  • Muddy sections stay wet even after rain stops—plan accordingly.
  • Descend before 3 PM to avoid afternoon clouds obscuring views and weather deteriorating.
  • Bring energy food—the steep grade burns calories fast.
Family Friendly Notes
Bears in area require children to be accompanied by adults at all times. Steep trail and scrambling terrain not suitable for young or less-experienced children. Kids 10+ with solid fitness and scrambling experience could summit with close supervision.
Nearby Facilities
Port Alsworth has limited services. Nearby options include kayaking to Tommy Island, visiting the Wassillie Trefon Dena'ina Fish Cache, and staying in NPS Priest Rock Public Use Cabin for overnight base.
Review Summary
Hikers report this is a lung-buster—the steep 3,250-foot elevation gain over 2.5 miles beats down most legs. Expect muddy, slippery scrambling terrain and fickle Alaska weather. Those who summit say the 360-degree Lake Clark views and tundra experience justify the pain.

Location

Frequently asked questions

Are there bears? Is it safe to hike alone?

Yes, bears are in the area. Make constant noise, store food properly, and maintain 100-yard distance from any sighting. Hiking alone is allowed but not recommended in bear country. Go with a partner if possible. If alone, carry bear spray and make noise relentlessly.

How do I get to Port Alsworth?

Port Alsworth is not connected by road. Access is float plane or water transport only. Arrange with local outfitters or fly into Anchorage and charter a float plane to Port Alsworth.

Do I need special gear?

Yes. Trekking poles prevent falls on muddy descent. Waterproof boots essential. Rain gear non-negotiable. Bring 2L water minimum. Hat, sunscreen, and insect repellent required. A map and compass or GPS device recommended for upper sections.

What's the fitness requirement? Can an average hiker do this?

You need solid fitness. This is a strenuous hike with 3,250 feet of elevation gain over 2.5 miles—much steeper than typical trails. If you're comfortable with consistent, steep elevation gain and scrambling, you can do it. Slow pace and frequent breaks are normal.

When's the best time to hike this?

Late June through August offers the most stable weather. Days are long, and conditions most predictable. September is possible but weather deteriorates quickly. Winter (November-March) is dangerous and not recommended.

Sources

Information is compiled from official sources, verified traveler reviews, and editorial research. Learn how YourNPGuide works.

Last updated July 2026. Report an issue.