Fidalgo-Gravina

The Fidalgo-Gravina roadless area encompasses 257,968 acres of the Chugach Mountains in southeastern Alaska, rising from sea level at Solomon Gulch to alpine summits including Cordova Peak at 5,263 feet. The landscape is defined by its hydrology: the Gravina River and its headwaters drain the interior, while Humpback Creek, Sheep River, Rude River, and Koppen Creek carve distinct drainages through the terrain. These waterways originate in high alpine basins and flow seaward through narrow valleys, creating a network of freshwater systems that connect the mountains to coastal waters.

Three distinct forest communities stratify across elevation and moisture gradients. In lower elevations and protected coves, Sitka Spruce–Western Hemlock Forest dominates, with western hemlock (Tsuga heterophylla) and Sitka spruce (Picea sitchensis) forming a dense canopy. The understory here is thick with devil's club (Oplopanax horridus), western skunk cabbage (Lysichiton americanus), and deer fern (Struthiopteris spicant), creating the characteristic dark, moist conditions of coastal temperate rainforest. At higher elevations, Mountain Hemlock Forest takes over, with mountain hemlock (Tsuga mertensiana) and Sitka spruce forming a more open canopy. Above the forest line, Alpine Tundra and Nonshrub Vegetation occupy the ridges and peaks, where partridgefoot (Luetkea pectinata) and white bog orchid (Platanthera dilatata) grow in exposed alpine meadows. Sitka Alder–Salmonberry Shrubland occurs in disturbed areas and avalanche paths, where Sitka alder (Alnus alnobetula) and salmonberry (Rubus spectabilis) rapidly colonize open ground.

The area supports a diverse array of wildlife adapted to its maritime and alpine conditions. Pink salmon (Oncorhynchus gorbuscha) and coho salmon (Oncorhynchus kisutch) return to the river systems to spawn, providing a seasonal pulse of nutrients that supports both terrestrial and aquatic food webs. Bald eagles hunt these salmon runs from the canopy, while brown bears (Ursus arctos) and American black bears forage along stream corridors. In nearshore waters, the federally endangered short-tailed albatross (Phoebastria albatrus) occurs seasonally, and the endangered sea otter (Enhydra lutris) and vulnerable Steller sea lion (Eumetopias jubatus) inhabit rocky coastlines and kelp forests. The marbled murrelet (Brachyramphus marmoratus), an endangered seabird, nests in old-growth forest canopy and commutes daily to coastal waters to feed. Mountain goats occupy the alpine ridges and cliff faces above the forest line.

Traveling through Fidalgo-Gravina means moving through distinct sensory zones. A hiker ascending from Solomon Gulch enters the dense hemlock-spruce forest, where the canopy closes overhead and the understory becomes progressively darker and more tangled with devil's club. The sound of water is constant—Humpback Creek or Sheep River audible through the trees. As elevation increases and the forest transitions to mountain hemlock, the canopy opens slightly, allowing more light to reach the ground. The understory shifts to oval-leaf blueberry (Vaccinium ovalifolium) and lower herbaceous plants. Breaking above treeline onto the alpine ridges, the landscape opens dramatically. Wind replaces the muffled quiet of the forest, and the view extends across the Chugach Mountains to the coast. Here, partridgefoot and alpine flowers replace trees entirely, and the presence of mountain goats becomes apparent—their trails visible on steep slopes and their silhouettes appearing against the sky.

The Fidalgo-Gravina area has been inhabited for over 10,000 years by the Chugach Sugpiaq (Alutiiq) people, specifically the Tatitlek People, whose traditional territory encompassed Port Fidalgo northeast to present-day Valdez. The Eyak people historically occupied the Copper River Delta and the eastern shores of Prince William Sound, including areas near present-day Cordova. The territory was also historically visited or influenced by the Tlingit from the east, Ahtna Athabaskans from the north, and occasionally the Dena'ina Athabaskans and Unangax. The Tatitlek people maintained at least 10 documented villages and camps throughout Port Fidalgo, the islands of Boulder Bay, Tatitlek Narrows, Ellamar, Galena, and Bligh Island. Eyak villages included Alaganik, Eyak, and Orca near present-day Cordova. The Sugpiaq were expert mariners who used seal- and sea-lion-skin kayaks and larger boats to navigate the fjords and islands of Prince William Sound. Land use centered on the estuaries and stream mouths to take advantage of abundant salmon runs. Harvesting extended to seals, sea lions, halibut, cod, and herring along the coastline, and to furbearers, mountain goats, and bears in the alpine and forested areas. The people also gathered plants, berries, and driftwood, and wove baskets and hats from spruce roots and grass.

During the late 18th century, Russian explorers including the Vitus Bering and Salvador Fidalgo expeditions entered the region. Spanish explorer Salvador Fidalgo entered Prince William Sound in 1790, performed a formal ceremony of sovereignty at Gravina Point, and named Port Fidalgo and Puerto Córdova (now Cordova). The establishment of Fort Saint Constantine at Nuchek on Hinchinbrook Island in 1793 served as a major Russian trade and cultural hub affecting the surrounding area. During the Russian fur trade period in the late 18th and early 19th centuries, Chugach men were often forced into labor for the sea otter fur trade.

Between 1897 and the 1930s, the region became a major center for copper extraction. The Ellamar Mine, located on Virgin Bay and discovered in 1897, produced copper, gold, and silver from 1901 until its closure in 1919 and was one of the most productive copper mines in the Prince William Sound district. A bustling waterfront company town grew around the mine, featuring a post office established in 1900, wharves, and residential buildings. The Landlocked Bay area hosted several significant mines, including the Threeman, Standard, and Landlocked Bay mines, extracting high-grade copper-bearing iron sulfide minerals. The Fidalgo Mining Company and the Schlosser property were active producers in Port Fidalgo; in 1915 alone, the Fidalgo Mining Company shipped several hundred tons of ore to the Tacoma smelter. Industrial operations utilized aerial tramways and short-line mine railroads to move ore from high-altitude adits down to coastal bunkers; historical photographs from 1919 confirm railroad tracks at mine entrances in Fidalgo Bay. While not a large town, Landlocked Bay featured extensive surface installations including aerial tramways, ore bunkers, and piers to facilitate ore transport. Historical logging supported the mining industry, providing timber for mine shafts, fuel, and building materials. The area also maintained a long history of commercial salmon and herring fishing. The U.S. Forest Service operated a boathouse and shipyard at Clam Cove from 1914 until approximately 1950.

The Chugach National Forest was officially established on July 23, 1907, by Presidential Proclamation issued by President Theodore Roosevelt under the authority of the Act of Congress approved June 4, 1897, commonly known as the Organic Administration Act of 1897. The forest was formed from a portion of a larger forest reserve, the Afognak Forest and Fish Culture Reserve, which had been designated in 1892. On July 2, 1908, an Executive Order consolidated the Chugach National Forest with the Afognak Forest and Fish Culture Reserve. On February 23, 1909, President Roosevelt issued a proclamation that significantly enlarged the forest to approximately 11,280,640 acres, adding most of the timbered area of the Kenai Peninsula, Turnagain Arm, Knik areas, and extending east to Cape Suckling. The forest underwent several reductions in size during the 1910s and 1920s; by 1919, the format of proclamation diagrams changed to meet stricter Forest Service mapping standards. On May 29, 1925, President Calvin Coolidge issued Proclamation 1741, modifying the boundaries to both add and exclude specific lands, restoring some excluded areas to homestead entry for ex-servicemen. Executive Orders 5402 and 5517, issued on July 24, 1930, and December 17, 1930, respectively, excluded small tracts of land such as cannery sites and homesteads from the forest to restore them to public entry. Executive Order 5517 specifically excluded approximately 4.25 acres for a home site. The establishment of the Chugach National Forest historically restricted Alaska Natives from acquiring certain land allotments under the 1906 Allotment Act. Historically, very little logging has occurred within the Chugach National Forest; less than 2 percent of the entire forest is considered suitable for commercial timber operations. Large-scale commercial fish hatcheries were established within or adjacent to the area in 1980, specifically at Main Bay and Cannery Creek. In more recent decades, the Tatitlek Corporation and Eyak Corporation, Native corporations with land inholdings, have conducted or planned extensive timber harvests in areas including Two Moon Bay, St. Matthews Bay, and Olsen Bay. The Fidalgo-Gravina area is protected under the 2001 Roadless Area Conservation Rule as a 257,968-acre Inventoried Roadless Area within the Chugach National Forest, managed within the Cordova Ranger District.

Vital Resources Protected

Headwater Protection for Salmon-Bearing Drainages

The Fidalgo-Gravina area contains the headwaters of the Gravina River and tributary systems including Humpback Creek, Sheep River, Rude River, and Koppen Creek—drainages that support high-density pink and chum salmon populations. These headwater streams originate in alpine and subalpine zones where cold groundwater and snowmelt maintain the low temperatures essential for salmon spawning and juvenile rearing. Road construction in headwater areas accelerates erosion from cut slopes and removes riparian forest canopy, which causes stream temperatures to rise and fine sediment to accumulate on spawning gravels, directly reducing egg survival and blocking access to spawning habitat.

Interior Forest Habitat for Marbled Murrelets

The Sitka Spruce–Western Hemlock and Mountain Hemlock forests within this roadless area provide nesting habitat for the federally endangered marbled murrelet, a seabird that requires old-growth forest with dense canopy structure and large branches for nesting. The unfragmented forest interior protects these birds from edge effects—increased predation, nest parasitism, and microclimate changes—that occur where roads create forest boundaries. Once fragmented by road corridors, the remaining forest patches become too small and exposed to support viable murrelet populations, and the loss is effectively permanent on human timescales because old-growth forest structure takes centuries to develop.

Alpine Tundra and Elevational Connectivity for Climate-Sensitive Species

The area's alpine tundra zones at elevations above 3,000 feet, including the summits of Cordova Peak (5,263 ft), Mount Chosin Few (4,950 ft), and Mount Kate (3,697 ft), provide habitat for multiple vulnerable and near-threatened species including dunlin, red knot, least sandpiper, and black-bellied plover. These high-elevation areas function as climate refugia where species can track suitable temperature and moisture conditions as climate changes. Road construction fragments the elevational gradient by creating barriers to movement between lowland and alpine zones, preventing species from shifting their ranges upslope as warming progresses, and the loss of connectivity is irreversible because roads persist as permanent landscape features.

Coastal and Marine Ecosystem Linkages for Endangered Marine Mammals

The roadless area's intact riparian and nearshore ecosystems support populations of federally endangered sea otters and vulnerable Steller sea lions, species that depend on healthy salmon runs and intact kelp forests for food. The area also provides critical habitat for the federally endangered short-tailed albatross, a pelagic seabird that forages in nearshore waters. Road construction in coastal drainages increases sedimentation and stream temperature, reducing salmon productivity and degrading the marine food web that these species depend on; the cumulative effect of multiple roads across the drainage network can collapse salmon populations that took decades to recover from the 1989 Exxon Valdez oil spill.

Threats from Road Construction

Sedimentation and Spawning Habitat Loss in Salmon Drainages

Road construction on steep mountainous terrain generates chronic erosion from cut slopes and road surfaces, delivering fine sediment into the Gravina River system and tributary streams where pink and chum salmon spawn. Fine sediment—silt and sand—fills the spaces between spawning gravels, smothering salmon eggs and preventing oxygen flow to developing embryos. Because the Fidalgo-Gravina area's steep alpine and subalpine topography means that roads must traverse unstable slopes with high erosion potential, sedimentation from road construction would be severe and persistent, degrading spawning habitat across multiple drainages simultaneously and reducing salmon recruitment for decades.

Canopy Removal and Stream Temperature Increase in Headwater Streams

Road construction requires removal of riparian forest canopy along stream corridors to create the roadbed and maintain sight lines, eliminating the shade that keeps headwater streams cold. Salmon eggs and juveniles are highly sensitive to temperature; even small increases in summer water temperature reduce growth rates and increase disease susceptibility. In the Fidalgo-Gravina area's high-latitude, maritime climate, the narrow window of suitable spawning temperatures is already constrained by seasonal variation, making the area's salmon populations particularly vulnerable to canopy loss. Once riparian forest is removed for road construction, recovery of shade-providing canopy takes 50–100 years, during which salmon productivity remains depressed.

Forest Fragmentation and Edge Effects on Marbled Murrelet Populations

Road corridors fragment the continuous old-growth forest interior into isolated patches, exposing marbled murrelets to increased predation from corvids and raptids that hunt along forest edges, and to nest parasitism by Steller's jays that concentrate at the boundary between forest and open areas. Roads also create microclimatic changes—increased wind, reduced humidity, and temperature fluctuations—that stress nesting birds and reduce chick survival. Because marbled murrelets have low reproductive rates and require large territories, the loss of even small percentages of interior forest habitat can cause population declines that persist for decades; the species' federally endangered status reflects its extreme sensitivity to fragmentation.

Barrier Effects and Elevational Disconnection for Alpine Migratory Species

Road construction creates physical and behavioral barriers that prevent dunlin, red knot, least sandpiper, and other migratory shorebirds from moving between coastal staging areas and alpine breeding habitat. These species use elevational gradients to track seasonal changes in food availability and temperature; roads disrupt this movement by creating obstacles, increasing predation risk during crossing, and fragmenting the continuous habitat mosaic that allows birds to navigate between zones. In a region where climate change is already shifting the timing of snowmelt and food availability, the loss of elevational connectivity prevents species from adapting their migration timing to match changing phenology, reducing breeding success and population viability.

The Fidalgo-Gravina Roadless Area encompasses 258,000 acres of the Chugach National Forest in southcentral Alaska, spanning from tidewater at Solomon Gulch and Port Fidalgo to alpine terrain above 5,000 feet. Access is by boat or floatplane from Cordova and Valdez. The roadless condition preserves the undisturbed watersheds and wildlife habitat that make these recreation opportunities possible.

Hunting

Game Management Unit 6D supports hunting for American Black Bear, Brown Bear, Sitka black-tailed deer, and Mountain Goat. Ptarmigan inhabit the upper slopes; grouse occupy the spruce thickets. Waterfowl concentrate seasonally in the estuarine habitats at the heads of Port Fidalgo and Port Gravina. Mountain Goat hunting is managed via drawing permit DG343 (Port Fidalgo North). Brown Bear seasons run October 15–December 31 and April 1–May 25. All hunters must salvage meat before removing trophy parts and must respect private Native Corporation land boundaries. Access is primarily by skiff from Cordova and Valdez at slack tide, or by floatplane drop-off at Hells Hole. A hiking trail along the narrows at the head of Port Fidalgo provides inland access. The roadless condition maintains the unfragmented habitat and quiet access that define hunting here.

Fishing

Indian River, Duck River, Hells Hole, Beartrap Bay, Saline Creek, and Simpson Creek support productive runs of all five Pacific salmon species (Chinook, Coho, Pink, Sockeye, and Chum). Solomon Gulch receives a strong pink salmon return supported by the Solomon Gulch Hatchery; surplus fish are available for sport harvest. Bag limits follow Alaska Department of Fish and Game Southcentral Region regulations—in 2025, pink salmon limits in the Valdez Terminal Harvest Area (marine waters north of Entrance Point to Potato Point) are 12 per day and 24 in possession; coho limits are six per day. Anglers access these streams by skiff at slack tide to the head of Port Fidalgo, by floatplane to Hells Hole, or via the hiking trail along the narrows. Shore-based casting occurs near Allison Point. The absence of roads preserves the cold, undisturbed headwater streams that support these salmon populations.

Birding

Bald Eagles are documented in significant numbers, particularly near salmon spawning streams and coastal regions. Waterfowl and shorebirds concentrate seasonally in the tideflats at the heads of Port Fidalgo and Port Gravina. Forest species in the spruce-hemlock interior include Black-capped Chickadee, Chestnut-backed Chickadee, Golden-crowned Kinglet, Ruby-crowned Kinglet, Brown Creeper, and Varied Thrush. The Copper River Delta, which borders the area, is a major spring migration corridor; the Copper River Shorebird Festival in nearby Cordova highlights peak migration in early May. Summer waterfowl use Sheep and Simpson Bay areas for nesting and molting. From July through October, eagles and seagulls congregate at the Solomon Gulch Fish Hatchery to feed on returning salmon. Birding occurs via boat access to coastal bays and via the hiking trail at the head of Port Fidalgo. The roadless condition maintains the interior forest habitat and undisturbed estuarine areas that support these species.

Paddling

Sea kayaking in Port Fidalgo and Port Gravina offers backcountry travel and wildlife observation. Paddlers stage from Cordova and navigate the tidal inlets using tide tables—tide ranges in the region exceed 15–18 feet. Landlocked Bay in Port Fidalgo and Comfort Cove in Port Gravina are documented reference points for marine travel. River mouths such as Humpback Creek and the Gravina River provide access to salmon habitat and bear country; standard backcountry safety protocols apply. The roadless condition preserves the quiet, undeveloped character of these coastal waters and the integrity of the salmon-bearing streams that make them ecologically significant.