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State Park

Photo: CASTLE RIVER CABINPublic domainRecreation.gov

Castle River Cabin

Kupreanof, AK

Verify with the state park system

State parks set their own rules and reservation systems. Fire bans, road closures, and operating dates change seasonally — check the state park website before traveling.

Directions

2

Total Sites

0.0

0 Reviews

1 Tent1 Cabin

Official sources & verification

Managed by State Park

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Source of truth

Verify by phone or mail

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this campground using the links above before you go — you are responsible for compliance. Last verified by us: Aug 8, 2026. Our copy is more than a month old — please reconfirm with the agency before relying on it.Spot an error in our data?

Live availability

via Recreation.gov
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Availability is a recent snapshot, not a live hold — you always complete the booking on recreation.gov.

About

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](http://www.adfg.alaska.gov/index.cfm?adfg=hunting.main) 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](http://tidesandcurrents.noaa.gov/noaatidepredictions/NOAATidesFacade.jsp?Stationid=9451287)). 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](http://www.adfg.alaska.gov/index.cfm?adfg=livingwithbears.bearcountry)).

Reviews

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How busy it gets

Recreation.gov
4.3

6 camper reviews on Recreation.gov

Amenities

Flush Toilets

Cell reception

Camper reports · checked Sep 29, 2026

Good Coverage

Average 2.7 of 4 bars · 3 reports across 1 carrier

Uninterrupted voice connection; consistent but possibly weak/slow data service; rare and/or very small drop-outs at site/facility. Signal may not show as full-strength across site/facility. Slower social media photo/video upload speeds.

  • AT&T

    Good Coverage

    2.7/4

    3 reports

Reported by campers on Recreation.gov, not measured by us. Reception varies by handset, weather, and where you stand in the campground. Recreation.gov

Check-in & Check-out

Check-in 12:00 PM

Check-out 12:00 PM

Campground Rules

  • No campfires allowed

Reservations

This campground accepts reservations. Book early for popular dates.

Make a Reservation

Individual Sites (2)

Within ~30 miles

Trails near Castle River Cabin

Explore trails near here

Hunt context

Hunting units around this campground

During hunting seasons, wear blaze orange and check regulations — see the Alaska hunting page

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