North Kupreanof

The North Kupreanof Inventoried Roadless Area covers 114,660 acres on northern Kupreanof Island and adjacent marine waters within the Tongass National Forest, southeast Alaska. The area rises through the Bohemian Range to Kupreanof Mountain, with the coastal topography marked by Turnabout Island, Harbor Island, and Schooner Island in the sheltered marine approaches of Frederick Sound. Drainages are of moderate hydrological significance: Sitkum Creek, Big Creek, Slo Duc Creek, Hamilton Creek, Cathedral Falls Creek, and Jenny Creek flow from the island interior, with Goose Marsh occupying a low-gradient coastal basin. These waterways support anadromous fish and drain into Frederick Sound, connecting the island's terrestrial ecosystems to a highly productive marine environment.

The island forest is dominated by Sitka spruce (Picea sitchensis) and western hemlock (Tsuga heterophylla), with lodgepole pine (Pinus contorta) and western red-cedar (Thuja plicata) present in the coastal fringe. The understory includes devil's-club (Oplopanax horridus), salmonberry (Rubus spectabilis), and thimbleberry (Rubus parviflorus). Ground vegetation includes stairstep moss (Hylocomium splendens), deer fern (Struthiopteris spicant), aleutian maidenhair fern (Adiantum aleuticum), and oval-leaf huckleberry (Vaccinium ovalifolium). Muskeg and bog openings support common labrador-tea (Rhododendron groenlandicum), small cranberry (Vaccinium oxycoccos), roundleaf sundew (Drosera rotundifolia), and tall white bog orchid (Platanthera dilatata). Along stream margins, nootka lupine (Lupinus nootkatensis), larkspurleaf monkshood (Aconitum delphiniifolium), and red alder (Alnus rubra) are characteristic. The fairy slipper orchid (Calypso bulbosa) occurs in older spruce-hemlock stands.

Moose (Alces alces) are the largest terrestrial herbivore confirmed on Kupreanof Island, with brown bear (Ursus arctos) and American black bear (Ursus americanus) as primary large predators. Chum salmon (Oncorhynchus keta), pink salmon (Oncorhynchus gorbuscha), chinook salmon (Oncorhynchus tshawytscha), and coho salmon (Oncorhynchus kisutch) use the island's creek systems, supporting the broader food web. In Frederick Sound and adjacent marine waters, humpback whale (Megaptera novaeangliae) is confirmed, along with common killer whale (Orcinus orca), harbor seal (Phoca vitulina), and dall's porpoise (Phocoenoides dalli). The sea otter (Enhydra lutris), assessed as endangered by the IUCN, occurs in nearshore kelp habitats. The marbled murrelet (Brachyramphus marmoratus), IUCN endangered, depends on old-growth conifers for nesting. The sunflower sea star (Pycnopodia helianthoides), critically endangered, historically dominated intertidal and subtidal rocky habitats along the island's shoreline. The yellow-billed loon (Gavia adamsii), assessed as near threatened, occurs in marine waters of Frederick Sound. Portions of this area fall within the potential range of several federally listed species; see the Conservation section for details.

The Portage Mountain Loop Trail (7.3 miles) and the Goose Lake Trail (0.6 miles) are the established routes in this roadless area. The Portage Mountain Loop traverses from coastal forest through the Bohemian Range interior, passing through the transition from productive low-elevation Sitka spruce–hemlock forest to the more open mountain hemlock–lodgepole pine communities at higher elevation. Cathedral Falls Creek offers an audible landmark along the route. The Goose Lake Trail accesses the coastal marsh system at Goose Marsh, where wetland and forest species meet. Both trails follow native-material surface typical of the Tongass rainforest—saturated, moss-covered ground with limited maintained drainage.

The Tlingit and Haida peoples of southeastern Alaska maintained sovereignty over Kupreanof Island and the surrounding waters of Frederick Sound from time immemorial, stewarding lands and waters through clan-based resource management systems that governed fishing grounds, hunting territories, and trade routes. [1] Courts have since affirmed what Indigenous oral histories long recorded: in 1959, the U.S. Court of Claims ruled that the Tlingit and Haida people held original use and occupancy over all lands and waters in southeastern Alaska "from time immemorial." [1] Near Petersburg—known in Tlingit as Séet Ká Kwáan—archaeological evidence has documented occupation going back over a thousand years, with shell middens radiocarbon dated to approximately 1,200 years before the present. [3] Tlingit and Haida hunters and fishermen worked the fish-filled waters of Mitkof Island, Kupreanof Island, and the surrounding archipelago across generations.

Norwegian emigrant Peter Buschmann arrived in the late nineteenth century and built a cannery, sawmill, and dock at the site that became Petersburg, incorporating the town in 1910. [3] His enterprise marked the beginning of European-American industrial settlement on Mitkof Island, just across Wrangell Narrows from Kupreanof. Petersburg grew into a significant fishing and processing center, drawing Norwegian and Scandinavian fishermen who worked the halibut and salmon grounds of Frederick Sound and adjacent waters.

Federal land management came to the region in 1902, when President Theodore Roosevelt established the Alexander Archipelago Forest Reserve, and was formalized by Roosevelt's September 10, 1907 proclamation creating the Tongass National Forest. [2] The new national forest encompassed Kupreanof Island along with the rest of southeastern Alaska's forested islands, placing its old-growth stands under federal administration managed from the Petersburg Ranger District. The Civilian Conservation Corps arrived in 1933 to build campgrounds, trails, and roads in the forests of southeastern Alaska, with restoration of Native totem poles also part of the program. [2]

Timber became the defining land use of the twentieth century on Kupreanof Island. Industrial-scale clear-cut timber harvest on Forest Service land on Kupreanof and Kuiu Islands began in 1963. [4] Soderberg Logging Company established a camp at Kake in 1968 and conducted most of the logging on Kupreanof Island during this era. [4] This logging brought short-term employment to the region but also significant ecological disruption; formerly logged areas regenerated as densely packed second-growth stands with sharply reduced habitat value relative to the old-growth forest.

The Alaska Native Brotherhood passed a resolution in 1929 to sue the federal government over the creation of the Tongass National Forest—established without the consent of the Indigenous peoples of southeastern Alaska. [1] In 1968, the U.S. Court of Claims awarded the Tlingit and Haida $7.5 million for lands withdrawn to create the Tongass National Forest and Glacier Bay National Monument. [1]

Today, the North Kupreanof Inventoried Roadless Area—114,660 acres within the Petersburg Ranger District—is protected under the 2001 Roadless Area Conservation Rule as part of Tongass National Forest.

Vital Resources Protected

Interior Forest Habitat The North Kupreanof Roadless Area preserves 114,660 acres of Sitka spruce–western hemlock forest on Kupreanof Island, maintaining the large-diameter old-growth structure required by the marbled murrelet (Brachyramphus marmoratus), assessed as endangered by the IUCN. Logging is documented as an extreme-severity threat affecting 11–30% of the marbled murrelet's range, and this threat operates through the road access that makes industrial timber harvest economically viable; the roadless designation prevents that access pathway. The fairy slipper orchid (Calypso bulbosa), sensitive to forest floor disturbance, occurs in old-growth stands here, where the undisturbed duff layer and stable mycorrhizal networks it depends on remain intact.

Cold-Water Stream Integrity Sitkum Creek, Big Creek, Hamilton Creek, Cathedral Falls Creek, and Jenny Creek drain the island interior to Frederick Sound, supporting runs of chum salmon, pink salmon, chinook salmon, and coho salmon. The roadless condition preserves these drainages without the culverts, stream-crossing structures, and riparian clearing that introduce elevated sediment loads and block fish passage. American dipper (Cinclus mexicanus) and north American river otter (Lontra canadensis) both use these creek systems and are confirmed in the area; industrial pollution affecting these species in restricted island drainages is documented at extreme severity in IUCN assessments.

Marine-Terrestrial Interface The shores of Kupreanof Island facing Frederick Sound—including Harbor Island, Schooner Island, and Turnabout Island—provide nearshore kelp and intertidal habitat for the IUCN-endangered sea otter (Enhydra lutris). The critically endangered sunflower sea star (Pycnopodia helianthoides) historically dominated intertidal rocky habitats along these shores. Goose Marsh, a low-gradient coastal wetland basin, provides habitat at the land-sea interface; the roadless condition maintains this wetland-upland transition zone without the hydrological disruption that road fill and drainage structures impose.

Potential Effects of Road Construction

Forest Fragmentation and Old-Growth Canopy Loss Road construction on Kupreanof Island would create access corridors through the Sitka spruce–hemlock forest interior, enabling logging that eliminates the old-growth structural conditions—large-diameter boles, deep accumulations of downed wood, and multilayered canopy—that marbled murrelet nesting requires. The recovery of old-growth conditions from logged forest takes well over a century; any road-facilitated timber harvest in this area would result in murrelet nesting habitat losses that cannot be reversed within the planning horizon of current management cycles. The fairy slipper orchid, dependent on intact mycorrhizal networks in old-growth duff, would also be eliminated from harvested stands.

Sedimentation of Island Creek Systems Road construction on the Bohemian Range and Kupreanof Mountain terrain would accelerate erosion from cut slopes into Sitkum Creek, Hamilton Creek, Cathedral Falls Creek, and Big Creek. Fine sediment delivered to these streams buries the spawning gravels of salmon-rearing habitat and clogs the interstitial spaces in stream beds that support the invertebrate communities that juvenile salmon feed on. The moderate hydrological significance of these island drainages means that they lack the large-scale dilution capacity of major river systems, making sedimentation effects more concentrated and persistent.

Shoreline Access and Disturbance Road construction reaching the Frederick Sound shoreline would increase vessel traffic and direct human activity in nearshore habitats used by sea otter and harbor seal (Phoca vitulina). Sea otter, which forages in kelp-bed habitats along the Kupreanof shoreline, is sensitive to recreational disturbance documented as a confirmed threat; increased access from road development would extend disturbance pressure to currently low-traffic coastal areas. Goose Marsh would be particularly vulnerable to hydrological modification through road fill and drainage alterations that intercept the diffuse freshwater inputs that maintain the marsh's wetland character.

The North Kupreanof Roadless Area covers 114,660 acres on northern Kupreanof Island in the Tongass National Forest. Access is primarily by floatplane or boat from Petersburg or Kake; no roads connect the roadless area to communities on the island. No maintained trailheads or campgrounds are documented in the area.

The Portage Mountain Loop Trail (21535) is the primary maintained route, running 7.3 miles over its full circuit through terrain ranging from coastal Sitka spruce–hemlock forest to the Bohemian Range and Kupreanof Mountain. The trail connects lower and upper elevation forest communities, passing Cathedral Falls Creek—an audible landmark on the route. The Goose Lake Trail (21462) provides a shorter 0.6-mile access route to the Goose Marsh coastal wetland system. Both trails are designated for hiker use.

Hunting is a significant recreational use of Kupreanof Island. Moose (Alces alces) is the primary large-game species—Kupreanof Island supports a moose population established in the 20th century that now provides hunting opportunity in the Tongass. Brown bear (Ursus arctos) and American black bear (Ursus americanus) are both confirmed in the area. North American porcupine (Erethizon dorsatum) and mule deer (Odocoileus hemionus) are documented in the roadless area as well.

Sport fishing targets the salmon runs of Sitkum Creek, Big Creek, Hamilton Creek, and Cathedral Falls Creek. Chum salmon, pink salmon, chinook salmon, and coho salmon all use these drainages. Coastal cutthroat trout (Oncorhynchus clarkii) is confirmed in the area, along with dolly varden (Salvelinus malma) in cold tributary streams. Frederick Sound, adjacent to the roadless area's coastal margin, is a documented humpback whale (Megaptera novaeangliae) feeding area; whale-watching from small boats in Frederick Sound is accessible from the Kupreanof Island shoreline.

Wildlife observation focuses on marine and coastal species accessible from the shoreline and Goose Marsh. Yellow-billed loon (Gavia adamsii), assessed as near threatened by the IUCN, is confirmed in Frederick Sound adjacent to this area—an uncommon species regularly documented in Alaska coastal waters. Marbled murrelet (Brachyramphus marmoratus), common murre (Uria aalge), black oystercatcher (Haematopus bachmani), and pigeon guillemot (Cepphus columba) are all confirmed. Sandhill crane (Antigone canadensis) is confirmed in the area. Sooty shearwater (Ardenna grisea) is confirmed offshore in Frederick Sound. Sea otter (Enhydra lutris) occurs in nearshore kelp-bed habitats along the Frederick Sound shoreline.

Goose Marsh, accessible via the Goose Lake Trail, is the most accessible birding point in the area, concentrating waterfowl and shorebirds at the land-sea interface. The fairy slipper orchid (Calypso bulbosa), confirmed in older spruce-hemlock stands, offers a notable botanical subject along the Portage Mountain Loop in late May and early June. Humpback whale and common killer whale (Orcinus orca) are confirmed in the adjacent Sound waters.

The Portage Mountain Loop Trail's 7.3-mile circuit represents the area's most significant hiking resource, traversing the full elevational gradient from coastal forest to the Bohemian Range and back. The recreation qualities of this area—undisturbed moose and salmon habitat, quiet trails without motorized access, and marine wildlife observation in Frederick Sound—depend on the roadless condition that prevents road-enabled logging from fragmenting the island forest and the culvert barriers that would interrupt the salmon drainages sustaining both the fishery and the moose population that feeds on riparian vegetation.