Castle River Cabin

Campground · Alaska · 1 bookable site ·

Managed by the USDA Forest Service

Tongass National Forest (NF) · Open Access

1
Bookable site
up to 7
People per site
46 ft
Elevation
CASTLE RIVER CABIN
Photo: CASTLE RIVER CABIN · Recreation.gov

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).

The facts

  • 1 bookable site
  • Up to 7 people per site
  • Loops: AREA CASTLE RIVER CABIN

Site types

  • 1 Cabin Nonelectric

Amenities

  • Shade

Not recorded upstream: electric hookups, water hookups, sewer hookups, campfires allowed, fire pits, picnic tables, grills, pets allowed.

Book on Recreation.gov

1 campsite at Castle River Cabin

Check-in 12:00 PM · Check-out 12:00 PM

SiteLoopTypeEntrySurfaceMax rigPeople
P11AREA CASTLE RIVER CABINCabin Nonelectric———7

Getting there

From Petersburg, it is 16 miles by float plane or 30 miles by boat. A 16-foot tide is required for direct boat or float plane access to the cabin. At lower tides, there is up to a 2-mile hike across the sometimes muddy tide flat to get to the cabin. Another option for access is to boat or fly to the Castle Flats Cabin (a 15-foot tide is required for float plane, or a 13-foot tide for boat access there) and hike the easy 0.5-mile trek to the cabin.

The Castle River Cabin can be found on USGS topographic map Petersburg C-4. Maps are available online or by calling the Petersburg Ranger District at (907) 772-3871.

56.64306, -133.25889 · 56°38'35.0"N 133°15'32.0"W

Directions (Google Maps) · Directions (Apple Maps)

Typical weather

Typically 62°F in Jul, down to 35°F in Jan.

JanFebMarAprMayJunJulAugSepOctNovDec
High °F353740485560626156473935
Low °F272830354248515046393228
Precip in11.47.67.66.75.95.05.68.214.313.812.311.8

1991–2020 averages from the nearest NOAA station, 16.6 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.

Map

Fees and stay limits

Reservations can be made the day of arrival or up to 180 days in advance and are restricted to a maximum stay of 7 consecutive nights per party for any one reservation between May 1 through September30, and a maximum stay of 10 consecutive nights per party from Oct.1 through April 30. There are no discounts for Alaska cabin rentals with Golden Age and Golden Passports. Only one change per reservation for all Alaska cabins is allowed. Change is defined as a modification to the start or end date of the reservation; after one change has been made, if additional changes are desired, the customer must cancel the current reservation and re-book the new dates.

From Recreation.gov, which is not always current. The operator's own page is the authority on what you will be charged.

More photos

Member photos

Common questions about Castle River Cabin

Can you reserve a site at Castle River Cabin?
Yes, Castle River Cabin is reservable through Recreation.gov.
How many campsites does Castle River Cabin have?
1 site.

Also listed by

Castle River Cabin also appears in other federal recreation data. Facts below are matched by name and location, not confirmed by Castle River Cabin's operator.

USDA Forest Service — data as of Aug 24, 2026

  • $45/night peak season May 1 – September 30 $25/night non-peak season October 1 – April 30

USDA Forest Service's own page

Camping near Castle River Cabin

Comments

Contact

Recreation.gov last updated this record on 2026-02-25.

Facility information and photographs from Recreation.gov (RIDB). SpotOpened is not affiliated with Recreation.gov or any federal agency.