Kennecott, Alaska: The Copper Camp That Closed Overnight

Kennecott was a self-contained copper-milling town built deep in Alaska’s Wrangell Mountains to process some of the richest copper ore ever discovered. The deposit was found in 1900, when prospectors Jack Smith and Clarence Warner spotted a green stain — the Bonanza outcrop — high on a ridge above the Kennicott Glacier. The find drew the attention and capital of the Alaska Syndicate, formed in 1906 by the Guggenheim family and financier J.P. Morgan, who organized the Kennecott Mines Company to develop it.

Reaching the ore required extraordinary infrastructure for so remote a place. The syndicate financed the 196-mile Copper River and Northwestern Railway, completed in 1911, to carry concentrate from the mountains to the port of Cordova on the Gulf of Alaska, and built a towering, multi-level concentration mill beside the mines along with company housing, a hospital, a school, a store, and a recreation hall. Between 1911 and 1938 the operation processed over 4.6 million tons of ore yielding roughly 1.18 billion pounds of copper, plus significant silver, with gross revenues above $200 million — making it one of the most profitable mining ventures of its era.

Kennecott’s economics depended on exceptionally high-grade ore, some of it among the purest copper ever mined. By the late 1930s those rich bodies were largely worked out, and ordinary ore could not pay for so remote an operation. The mine closed in November 1938, and the company withdrew with startling speed; the last train left the rails of the Copper River and Northwestern in November 1938, and the town was abandoned almost immediately, its red mill buildings left standing in the wilderness.

Today the distinctive red-and-white mill and many of the surrounding wooden structures survive within Wrangell–St. Elias National Park and Preserve. Designated a National Historic Landmark in 1986 and largely acquired by the National Park Service beginning in the late 1990s, Kennecott has been stabilized and partly restored as one of the best-preserved early-twentieth-century industrial sites in the United States.