USDA Forest Service
Castle Flats 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…
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 from May 1 through September 30 and a maximum stay of 10 consecutive nights per part from October 1 through April 30. There are no…
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Castle Flats Cabin is located in Alaska
From Petersburg, it is 16 miles by float plane or 30 miles by boat. A 15-foot tide is required for float plane access, and a 13-foot tide is required for boat access. At lower tides, there is up to a 2-mile hike along the tide flat to the cabin. Castle Flats Cabin can be found on USGS topographic map Petersburg C-4. [Maps](http://ask.usgs.gov/to_order.html) are available online or by calling the Petersburg Ranger District at (907) 772-3871.