A gray 4x4 Sprinter with a roof rack on a two-track through a wildflower meadow, cloud sitting on the mountains behind.

Forest Service cabin or lookout

Swan Lake Cabin Petersburg

Forest Service cabin or lookout in Tongass National Forest, Petersburg County, Alaska. 1,524 feet. 17.9 miles from Kupreanof.

Managed by
Forest Service Tongass National Forest
Elevation
1,524 ft As the Forest Service states
Sites
1 1 cabin non-electric
Hookups
None listed
Reservations
Recreation.gov

Overview

Swan Lake Cabin is located on mainland Alaska along the southeast shore of Swan Lake. It is available for reservation year-round and provides access to a variety of recreational activities, including hiking, fishing, hunting and viewing wildlife. The cabin also provides spectacular scenic views of the surrounding area.

The cabin can be accessed only by float plane or helicopter. The adjacent lake is normally frozen from November through early June, further limiting access. Guests are responsible for their own travel arrangements and safety and must bring several of their own amenities.

Recreation

Favorable rock, ice and glacier climbing conditions are found throughout the area. The Cascade Creek Trail can be reached by boat from the cabin. Beginning at the west end of the lake, it leads to Falls Lake and a three-sided shelter about a mile away. The trail terminates at the Cascade Creek Cabin, 5 miles out, in Thomas Bay.

Fishing and boating are also popular activities. Two rowboats with oars are available at the cabin, however, life jackets are not provided and guests must supply their own. Guests may also wish to bring a small outboard motor. Anglers may find rainbow trout in the lake.

A sand bar for tent camping or picnicking is also available. Wildlife viewing and hunting are also popular pastimes. Hunting is available as per state or federal hunting regulations; click here for more information from the Alaska Department of Fish and Game.

Facilities

The A-frame cabin was rebuilt in 2005-06 and has two wooden bunks and a sleeping loft to accommodate up to seven people. It is equipped with a table and benches and a clean-burning oil heater. An outhouse with pit toilets is provided.

Water for drinking, cooking and cleaning purposes is not provided at the cabin. Water taken from the lake and the nearby stream should be treated or boiled before consumption. Guests are encouraged to bring their own drinking water if possible.

Guests will need to bring their own sleeping bags and pads, cook stove and cooking gear, towels, food and clothing, fire starter and garbage bags, among other necessities. Guests are advised to bring enough kerosene or No. 1 heating oil for the oil heater. It burns at a rate of approximately one gallon per day. Oil is not supplied at the cabin.

Click here for more cabin details and maps.

Natural Features

The cabin is situated on the alpine Swan Lake, east of Thomas Bay, at an elevation of 1,524 feet. It is surrounded by the steep peaks of the Cosmos Range. Swan Lake offers some of the most spectacular scenery and photographic opportunities in the region.

The steep talus slopes are home to mountain goats, and rainbow trout are plentiful in the lake. Alpine wildflowers are abundant in the area. The region is also home to a variety of wildlife. Click here to learn more about bear safety.

The description, directions and fees are the Forest Service’s own words, from its record on Recreation.gov.

What people do here

  • camping
  • fishing
  • hiking
  • hunting
  • photography
  • wildlife viewing

The land around Swan Lake Cabin Petersburg

The ringed pin is this cabin or lookout; the others are its nearest neighbours. Switch on forest roads or BLM routes to see the way in.

Interactive map. Drag to pan, scroll or pinch to zoom, and select any point to see which agency manages the land. Arrow keys pan and the plus and minus keys zoom when the map has focus. A list of every state with its share of federal land is on the Explore page.

Map layers

Layers
Base map
Legend

Federal land, by managing agency

  • Bureau of Land Management (BLM)
  • US Forest Service (USFS)
  • National Park Service (NPS)
  • US Fish and Wildlife (USFW)
  • Bureau of Reclamation (USBR)
  • Department Of Defense (DOD)
  • Bureau of Indian Affairs (BIA)
  • Other Federal
  • State
  • Local
  • Alaska Native Lands (Patented or Interim Conveyed)
  • Alaska Native Allotment

Federal campgrounds, by agency

  • Forest Service
  • Bureau of Land Management
  • National Park Service
  • Army Corps of Engineers
  • Reclamation, Fish and Wildlife and others

State and local land (USGS PAD-US)

  • State land
  • County and city land
  • Regional agency or district
  • Land trust or conservancy

Gaps with no tint inside public land are private parcels, often old mining claims and homesteads. They are not open to the public.

Dashed clay lines on the base map are unpaved tracks from OpenStreetMap. They show what exists on the ground, not what is legal to drive.

Select any point to see who manages the land.

Boundaries are approximate and land status changes. This map is a planning aid, not a survey or a statement of access. Confirm routes, closures and camping rules with the managing office.

Source: Recreation Information Database (Recreation.gov), record updated February 25, 2026. Elevation from the USGS 3D Elevation Program. Seasons, fees, water and fire rules change; the managing office has the final word.