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The Seward Peninsula is a large peninsula on the western coast of the U.S. state of Alaska whose westernmost point is Cape Prince of Wales. The peninsula projects about into the Bering Sea between Norton Sound, the Bering Strait, the Chukchi Sea, and Kotzebue Sound, just below the Arctic Circle. The entire peninsula is about long and wide. Like Seward, Alaska, it was named after William H. Seward, the United States Secretary of State who fought for the U.S. Alaska Purchase.
The Seward Peninsula is a remnant of the Bering land bridge, a roughly thousand-mile-wide swath of land connecting Siberia with mainland Alaska during the Pleistocene. This land bridge aided in the migration of humans, as well as plant and animal species, from Asia to North America. Excavations at sites such as the Trail Creek Caves and Cape Espenberg in the Bering Land Bridge National Preserve as well as Cape Denbigh to the south have provided insight into the timeline of prehistorical migrations from Asia to the Seward Peninsula. Cultural Resources in the Bering Land Bridge National Preserve
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Other locations on the Seward Peninsula include the mining towns of Council, Solomon, Candle, Haycock and Taylor. While still frequented by locals of neighboring communities, there are no longer year round residents in these locations. There was a United States Coast Guard LORAN station at Port Clarence. The U.S. Air Force operates a radar station at the "Tin City" site, southeast of Wales.
Several geothermal hot springs are located throughout the peninsula, including Serpentine Hot Springs, Pilgrim Hot Springs, Granite Mountain, Elim, Clear Creek and Lava Creek.
The Seward Peninsula has several rivers. The largest include the Koyuk River, Kuzitrin River, Niukluk River, Fish, Tubuktilik River, Kiwalik River, Buckland River and Agiupuk River rivers. These play a vital role in the subsistence lifestyles of many peninsula residents and ease travel, hunting, and fishing. Most peninsula rivers have at least a small yearly run of several varieties of salmon, as well as Dolly Varden trout, Arctic grayling, Coregonus of various species, northern pike, and burbot. Most rivers on the Seward Peninsula freeze in mid-October; spring break-up usually occurs in mid- to late May.
The Seward Peninsula is the westernmost limit of distribution for the Picea mariana, Picea mariana, a dominant overstory species of the region.
Alaska's reindeer herding was concentrated on the Seward Peninsula ever since the first shipment of reindeer were imported there from eastern Siberia in 1892. It was believed that migrating caribou could be prevented from mingling with the domesticated reindeer on the Peninsula because of the geography of the peninsula, thereby avoiding loss of reindeer that might wander off with caribou. However, in 1997 the domesticated reindeer joined the Western Arctic Caribou Herd on their summer migration and disappeared.
Cape Prince of Wales, the westernmost point on the mainland of the Americas, is on the western tip. The cape is only from Cape Dezhnev, the closest point on the mainland. In August 2011 Russia announced an ambitious project to construct a rail tunnel under the Bering Strait, linking the Seward Peninsula in Alaska with the Chukchi Peninsula in Russia. If completed, the project would cost an estimated US$65 billion and would be the world's longest tunnel at long.
The peninsula was named after William H. Seward, the United States Secretary of State who negotiated the Alaska Purchase of Alaska from Russia in 1867.
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