Skip to content
Castle River Cabin in Alaska
Hard to BookNational Forest

Castle River Cabin

Tongass National Forest, Alaska

Sold out? We check Castle River Cabin for cancellations and email you the moment a site opens.

Sold out for your dates?

Free to start. Email alerts included.

As of October 2026, Castle River Cabin is a campground in Tongass National Forest, Alaska with 1 campsite. Castle River Cabin is booked through Recreation.gov.

  • PermitSnag checks Castle River Cabin for availability and tells alert holders when a site opens up.
  • Castle River Cabin is located at 56.6431ยฐ N, 133.2589ยฐ W.
people allowed on each site
7

Castle River Cabin reservations and next available dates

October 2026

open, tap to book on Recreation.govsold outin your alert

Campsites at Castle River Cabin

  • Cabin 1

Amenities

  • restrooms
  • potable water

At a glance: Setting: Forest.

Things to do: fishing, boating, hiking, wildlife.

All sites at Castle River Cabin, as listed by Recreation.gov

Every site is in the AREA CASTLE RIVER CABIN loop.

SiteTypeSleeps
P11Cabin7

About Castle River Cabin

Overview

Castle River Cabin is located on Kupreanof Island on the coastal waters of southeastern Alaska. It offers access to a variety of outdoor recreational opportunities, as well as a secluded place to enjoy its beautiful surroundings.

The cabin is accessible only by boat or float plane from Petersburg or Wrangell, and tides impact access. During low tides, a 2-mile hike is necessary to reach the cabin. Guests are responsible for their own travel arrangements and safety, and must bring several of their own amenities.

Recreation

The Castle River Trail leads a half-mile downstream to the Castle Flats Cabin, and a half-mile upstream to a rowboat and oars. Wildlife can be seen along the trail.

Waterfowl, grouse, moose, deer and bear hunting is also available in designated seasons as per state or federal hunting regulations; click here for more information from the Alaska Department of Fish and Game.

Visitors also enjoy fishing for steelhead trout from April to May, trout from May to October, and coho salmon in mid-August through mid-September.

Boating is a popular way to explore the area, but a 16-foot tide is required to cross the tide flats in front of the cabin (local tide tables).

Life jackets are not available; visitors must bring their own. Visitors may also choose to bring a small outboard motor for the rowboat.

Facilities

The modified A-frame cabin has an extended roof and an upright wall to form a bump-out. It

has two double bunks and a sleeping loft to accommodate a total of seven people. The cabin is also equipped with a table, benches, a wood stove and an outhouse with a

pit toilet.

Firewood is generally available, but is not guaranteed. Firewood is for heating the cabin only, not for outdoor campfires. A broom, dust pan, axe and splitting maul are generally available, but may be missing or damaged.

Drinking water is not available at the cabin. Water is available in the nearby river or streams, but it must be treated or boiled prior to consumption. It is recommended

that visitors bring their own supply of water for drinking, cooking and cleaning.

Visitors need to bring sleeping bags and pads, a cook stove and cooking gear, towels, food, clothing and garbage bags, among other necessities. All trash and food must be

packed out, and visitors are expected to clean the cabin before leaving.

Click here for more cabin details and maps.

Natural Features

The cabin is located inside a large tide flat on Kupreanof Island at the mouth of the Castle River on the west side of Duncan Canal. The surrounding terrain is predominantly flat-to-rolling old-growth forest and muskeg.

A variety of wildlife makes its home in the area, including moose, deer, black bears, waterfowl and grouse (learn more about bear safety).

Rules and notices at Castle River Cabin

Recreation.gov does not date these notices. We last read them on September 30, 2026. Check Castle River Cabin on Recreation.gov

Notices from Recreation.gov

This facility is located in an extremely remote and wild area; before making a reservation, become aware of bear, water, and weather safety (including cold)

Recreating in Alaska can present both obvious and hidden dangers; please be aware of your surroundings and be prepared for extended stays due to occasionally poor weather

Tides affect access to this cabin; consult local tide tables before making a reservation

An oil stove previously at the cabin has been replaced with a wood-burning stove; firewood may be available, but is not guaranteed

Firewood at the cabin is supplied only for heating the cabin, it is not for outdoor campfires; collect dead and down wood from the forest for your outdoor campfire

Water taken from the nearby stream should be treated or boiled prior to consumption

Use of this cabin by a commercial operator, such as an outfitter or guide, is not allowed

High levels of Paralytic Shellfish Poisoning (PSP) have been recorded in this area

All garbage and food must be packed out

Please report all missing or damaged items to the Petersburg Ranger District

Learn more about Tongass National Forest

Don't Move Firewood: Prevent the spread of tree-killing pests by purchasing firewood near your destination and burning it on-site. For more information visit dontmovefirewood.org.

The invasive European Green Crab (EGC) has been found in southern Southeast Alaska and is suspected to be in more locations on the Tongass National Forest. Please actively look for and report EGC to help map the distribution and contribute to management.

Castle River Cabin FAQ

How hard is it to get a campsite at Castle River Cabin?

Castle River Cabin is rated "Hard to Book" based on historical demand. This campground is popular and often books out weeks in advance. Your best strategy is to monitor cancellations.

How do I find last-minute availability at Castle River Cabin?

Cancellations happen frequently at Castle River Cabin, especially 1-2 weeks before check-in dates. PermitSnag monitors availability 24/7 and sends instant alerts when sites open up due to cancellations. This is often the best way to snag popular campsites.

How many campsites does Castle River Cabin have?

Castle River Cabin has 1 campsites.

More campgrounds in Tongass National Forest

Same forest, same drive. Set an alert on any of them alongside this one.

All 153 Tongass National Forest campgrounds

Campgrounds

Browse Campsites

Monitor campsite availability across federal and state parks. Get alerts when sites open up at sold-out campgrounds.

One tick helps us more than youโ€™d think

Google lets you pick the sites it highlights for you. Add PermitSnag and our campground pages get marked as one of yours in AI Overviews and AI Mode.

Add PermitSnag in Google

Takes less than a minute.