Kootznoowoo Wilderness: An In-Depth Geographic Atlas of Southeast Alaska Coastal Protected Lands

Kootznoowoo Wilderness is best known for its dense old-growth temperate rainforest and for harboring one of the highest densities of brown bears on Earth. The island's remote, roadless character has allowed populations of large mammals and intact predator-prey relationships to persist in a way that few other North American landscapes still support. Equally distinctive is the contrast it provides with the rest of Alaska: where much of the state is defined by ice, tundra, and boreal forest, Kootznoowoo is defined by towering conifers, a fern-covered understory, salmon-rich streams, and a maritime climate. This combination of rainforest ecosystem, high bear density, and intact coastal food web defines the wilderness's international reputation.

Kootznoowoo Wilderness was formally designated on December 2, 1980, as part of the larger wave of Alaska wilderness protections that followed the Alaska National Interest Lands Conservation Act of 1980. The designation placed the bulk of Admiralty Island under the highest level of federal land protection available in the United States, locking in its wilderness character against logging, road-building, and large-scale development.

The broader landscape had already gained federal attention through its inclusion in Admiralty Island National Monument, proclaimed to protect the island's outstanding natural and cultural values. The monument, and later the wilderness, were nested within Tongass National Forest, the umbrella federal forest that encompasses Southeast Alaska's coastal islands and mainland.

Long before federal protection, Admiralty Island was home to Tlingit communities who used the island's fish, game, forests, and waterways for thousands of years. The village of Angoon, located outside the wilderness boundary, is the only permanent present-day settlement and represents a continuing Tlingit presence on the island. Indigenous place names, resource use patterns, and seasonal movement across Kootznoowoo's lands and waters are part of the deeper, undocumented history of the region and continue to shape its cultural context today.

The landscape of Kootznoowoo Wilderness is a textbook example of Southeast Alaskan topography: a mountainous, fjord-indented island with steep slopes that plunge directly into the sea. Glacial carving has left behind a coastline fragmented into countless inlets, bays, and channels, while the interior rises into rugged, forested ridges and peaks. There are no roads and no broad valley plains of the type seen elsewhere in Alaska; instead, the terrain is broken, forested, and dissected by water.

What sets Kootznoowoo apart visually is its continuous blanket of temperate rainforest. Old-growth Sitka spruce and western hemlock form tall, layered canopies that drape over the contours of the land, while dense shrub layers and fern undergrowth fill the spaces between. Streams and small rivers course through mossy corridors toward the coast, often interrupted by beaver ponds and estuarine flats. The result is a landscape that feels uniformly forested from shoreline to ridge, with few of the open vistas or icy expanses typical of mainland Alaska.

The ecological identity of Kootznoowoo Wilderness is rooted in the temperate rainforest biome of the Pacific Northwest coast, an ecosystem that reaches the northern limit of its global range in Southeast Alaska. Persistent rainfall, mild temperatures, and the moderating influence of the Pacific Ocean create the humid, stable conditions that allow old-growth conifer forests to thrive. This is structurally very different from the boreal forest and tundra that dominate elsewhere in Alaska.

Mature Sitka spruce and western hemlock stands dominate the canopy, with smaller contributions from other conifers, deciduous trees, and a dense understory of shrubs. The forest floor is a moist, decomposing world of mosses, lichens, ferns, fallen logs, and thick duff that supports a wide range of invertebrates, amphibians, and small mammals. Beaver-modified wetland complexes, tidal estuaries, and salmon-bearing streams interweave the upland forest, creating a mosaic of habitats that sustains the wilderness's remarkable productivity.

Because the forest is largely intact and has never been extensively logged, it retains ecological features, such as large old trees, abundant downed wood, and complex stream networks, that have been lost from many other temperate rainforests. This structural complexity is widely considered central to the long-term health of the ecosystem and to the species that depend on it.

Kootznoowoo Wilderness is internationally renowned for its exceptionally dense population of brown bears, one of the highest concentrations recorded anywhere in the world. Salmon runs, berry-producing openings, and the absence of hunting pressure within the wilderness boundary combine to support bears in numbers that far exceed what is typical for mainland Alaska. The result is a near-constant presence of bears along salmon streams, in estuaries, and along forest edges.

The island's predator community extends beyond brown bears to include the Alexander Archipelago wolf, a unique subspecies of coastal gray wolf that occurs only on the islands of Southeast Alaska. Black bears, Sitka black-tailed deer, moose, red fox, and harbor seals add further depth to the mammal fauna. The marine environment brings additional wildlife into the wilderness, including bald eagles, which nest in the tall conifers and feed heavily on salmon, and a wide variety of seabirds and waterfowl that use the coastlines and inland waters.

Aquatic wildlife is equally central to the ecosystem. All five species of Alaskan salmon return to the island's streams, fueling the entire food web from bears and wolves to eagles and invertebrates. The rough-skinned newt and boreal toad, two of the only amphibian species adapted to the climatic conditions of Alaska, occur in the wetlands and forest pools, completing a wildlife portrait that is unusually diverse for the region's latitude.

From a conservation perspective, Kootznoowoo Wilderness is significant because it preserves a large, intact block of coastal temperate rainforest at a time when such ecosystems have become rare globally. Its wilderness designation prohibits road construction, logging, and most forms of mechanized development, ensuring that the structural and ecological features of the old-growth forest remain intact. The wilderness is also a stronghold for the Alexander Archipelago wolf, a subspecies with a restricted range that depends on the protected forest conditions of Admiralty Island and similar Southeast Alaskan landscapes.

The wilderness's brown bear density makes it a globally important reference site for understanding predator-prey dynamics, salmon ecosystem linkages, and human-wildlife coexistence in a roadless environment. Because the island is accessible primarily by boat or floatplane, the area receives relatively low visitor pressure, which itself is a conservation asset. Together, these qualities make Kootznoowoo one of the most ecologically valuable wilderness areas in the United States.

Kootznoowoo, like the rest of Admiralty Island, is the ancestral homeland of the Tlingit people, and the wilderness sits within a landscape shaped by Indigenous presence for thousands of years. The Tlingit place name itself reflects the deep cultural relationship between local communities and the island's natural systems, including its salmon streams, bear populations, and forested valleys, all of which sustained traditional subsistence practices.

The village of Angoon, located just outside the wilderness boundary on the island's western coast, remains a living Tlingit community and a key partner in regional land management discussions. Subsistence hunting, fishing, and gathering continue to connect Angoon residents to the broader island landscape, even within the formally protected wilderness. The cultural ties between the Tlingit and Admiralty Island are widely recognized as integral to the area's identity, alongside its ecological importance.

Kootznoowoo Wilderness's most distinctive features are its unbroken canopy of old-growth Sitka spruce and western hemlock, the lush fern understory beneath, and the exceptionally dense population of brown bears that depends on its salmon-rich streams. Few places in North America combine such a high concentration of large predators with such an intact coastal rainforest setting.

Equally noteworthy is the wilderness's hosting of the Alexander Archipelago wolf, its role as nesting habitat for thousands of bald eagles, and its position as one of the few Alaskan landscapes where visitors can walk beneath towering rainforest rather than across tundra or ice. The wilderness's sheer size, roadless condition, and integration into Tongass National Forest and Admiralty Island National Monument all reinforce its status as a flagship Southeast Alaskan wilderness.

The character of a visit to Kootznoowoo Wilderness shifts meaningfully with the seasons. Summer is the most accessible period, when longer daylight hours, milder temperatures, and active salmon runs make wildlife viewing, especially brown bears feeding on salmon, an experience that defines a trip to Admiralty Island.