Castle Flats Cabin
Open and available for reservations via Recreation.gov. The facility is receiving minimal maintenance this year. Firewood is not guaranteed, and guests using the oil stove should bring clean #1 heating oil or kerosene. All trash must be packed out.
Small Craft Advisory issued September 19 at 6:56PM AKDT until September 20 at 4:00AM AKDT by NWS Juneau AK
* WHAT...Southeast winds 20 to 30 kt with gusts up to 45 kt and seas 6 to 9 ft expected. * WHERE...Sumner Strait. * WHEN...Until 4 AM AKDT Sunday. * IMPACTS...Conditions will be hazardous to small craft.
Small Craft Advisory issued September 19 at 2:48PM AKDT until September 20 at 5:00AM AKDT by NWS Juneau AK
Southeast Alaska Inside Waters from Dixon Entrance to Skagway Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent the average of the highest one-third of the combined windwave and swell height. .TONIGHT...SE wind 25 kt. Seas 6 ft, except 8 ft near ocean entrances. Rain in the evening, then showers late. .SUN...S wind 25 kt. Seas 5 ft, except 9 ft near ocean entrances. Showers in the morning. Slight chance of thunderstorms. Showers in the afternoon. .SUN NIGHT...SE wind 15 kt. Seas 4 ft, except 9 ft near ocean entrances. Showers and slight chance of thunderstorms. .MON...SE wind 10 kt. Seas 2 ft or less, except 7 ft near ocean entrances. Showers and slight chance of thunderstorms. .MON NIGHT...SE wind 15 kt. Seas 3 ft. Showers. .TUE...SE wind 20 kt. Seas 4 ft. .WED...SE wind 20 kt. Seas 3 ft. .THU...E wind 10 kt. Seas 2 ft or less.
From Recreation.gov
Be advised this facility will receive minimal maintenance this year. If this facility has an oil stove please use clean #1 heating oil or kerosene to limit problems with operation. If this facility has a wood stove it is not guaranteed wood will be available. Please help us maintain this site for all to enjoy by packing out all garbage and leaving it cleaner than you found it. Report problems to the Petersburg Ranger District: 907-772-5869.
About
Castle Flats Cabin sits on the edge of the Castle River tide flat on Kupreanof Island, surrounded by old-growth forest and muskeg in the Tongass National Forest. This hunter-style cabin is a true backcountry experience, requiring either a 16-mile float plane flight or 30-mile boat ride from Petersburg. Tides dictate access: a 15-foot tide for float planes, 13-foot for boats, with a potential 2-mile hike across mud flats at lower water levels. The cabin sleeps up to five on four wooden bunks and is equipped with both an oil heater (requires #1 heating oil or kerosene) and a wood stove. A covered porch, table with benches, and basic tools including an axe and splitting maul are provided. A rowboat with oars is available for navigating the tide flats and nearby waterways, though guests must bring their own life jackets. The surrounding terrain hosts moose, black bears, deer, waterfowl, and grouse. Spring migrations bring diverse bird species to the flats. The Castle River Trail offers an easy 1-mile hike to the nearby Castle River Cabin and continues upstream through forest and muskeg. Fishing opportunities include steelhead (April-May), trout (May-October), and coho salmon (mid-August through mid-September).
Directions
From Petersburg, 16 air miles or 30 water miles. A 15-foot tide is required for float plane access, 13-foot tide for boat access. At lower tides, expect up to a 2-mile hike across the tide flat to reach the cabin. Located on the west side of Duncan Canal on Kupreanof Island.
Location
Amenities
| Water | No |
| Fires Allowed | Yes |
| Toilets | Yes |
| Dump Station | No |
| Wifi | No |
| Pets Allowed | — |
| Showers | No |
| Electric Hookups | — |
| Water Hookups | — |
| Sewer Hookups | — |
| Camp Store | No |
| Price | $25 |
Vehicle
| Max RV Length | — |
| Max Trailer Length | — |
| Big Rig Friendly | No |
| Pull Through Sites | No |
Contact
| Phone | +1 (907) 772-3871 |
Cell Service
| AT&T | Yes |
| Verizon | None |
| T-Mobile | None |
Availability
Photos
Community Posts
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