city, southeastern Alaska, U.S. Situated on Prince William Sound, 305 miles (490 km) east of Anchorage, it is the northernmost all-year port in North America. Formerly known as Copper City, it was renamed in 1898 for its harbour (explored and named by Spaniards in 1790 in honour of naval officer Antonio Valdés y Basan) when it became a gateway for the Yukon goldfields. After it was severely damaged by the great Alaska earthquake of 1964, the city was rebuilt 5 miles (8 km) west on safer ground. Valdez was the principal settlement affected when the oil tanker Exxon Valdez (Exxon Corporation) ran aground in Prince William Sound on March 24, 1989, in what was then the largest oil spill in U.S. history.

It is a port of entry and the southern terminal for the Trans-Alaska Pipeline from Prudhoe Bay. The petroleum industry is the main economic activity, supplemented by mining, fish processing, and tourism. The city is the site of Prince William Sound Community College, a campus of the University of Alaska (Alaska, University of) Anchorage. The Valdez Museum contains exhibits on the city's history. Halibut- and salmon-fishing derbies are held during the summer. Valdez lies on a fjord at the base of the Chugach Mountains and is a gateway to Chugach National Forest. Recreational activities include kayaking, skiing, snowmobiling, and hiking. The Columbia Glacier (whose face is 300 feet 【90 metres】 high) is nearby, and Wrangell–St. Elias National Park and Preserve (Wrangell–Saint Elias National Park and Preserve) (east) is accessible by road. Inc. 1901. Pop. (1990) 4,068; (2000) 4,036.