Washington

The Aluminum Corporation of America (Alcoa) opened this central Washington aluminum plant in 1952, one of several smelters the company operates in the United States. Washington produces more aluminum than any other state, a situation which started in World...

Two adjacent refineries are located on March Point, in Anacortes - one operated by the Tesoro Petroleum Corporation, and a larger one operated by Shell. Crude, processed at the plants, comes primarily from Alaska's North Slope, arriving by tankers making the...

The Asarco copper smelter at Ruston, a small coastal town next to Tacoma, closed in 1985, after 80 years of operation. The closure, which included the felling of a landmark 562-foot tall smokestack, was spurred by concerns about toxic emissions of sulfur...

Bangor Sub Base manages the third largest collection of nuclear weapons in the country, with approximately 1,700 Trident missiles either stored at its hill-top depot, or onboard its fleet of eight Trident submarines which still roam the seas on secret...

The Boeing Commercial Aircraft Division complex at the north end of Paine Field in Everett includes what is called the most capacious building in the world (enclosing a volume of 600 million cubic feet on 96 acres). The 11-story high building was constructed...

Boeing's Military Aircraft and Missile Systems Group is the world's largest military aircraft manufacturer. This division is based in St. Louis, but employs 3,000 people in the Seattle area, most in this complex next to Boeing Field. Work here includes...

Private, military museum depicting the history of the adjacent Puget Sound Naval Shipyard, one of the largest Navy shipyards in the country. Focuses mostly on WWII era. Also in the museum is the "oldest known canon."

Similar to a building construction crane, the Wind River Canopy Crane is set up in a National Forest in southern Washington for forest canopy research. A gondola platform is suspended from the crane, providing three-dimensional access to a six-acre circle of...

History is layered at the southwestern-most corner of the state, where an interpretive center sits atop an abandoned coastal battery, at the point where Lewis and Clark stood to view the Pacific at the end of their long journey. Cape Disappointment is the...

In a state dominated by some of the largest hydropower projects in the world, the big coal-fired power plant at Centralia is an anomaly. The plant was built in 1972, and is fueled by coal mined in the nearby hills. It produces 1,330 megawatts, and is blamed...

Cherry Point is the fourth largest refinery on the West Coast. 202,000 barrels of crude are processed each day at this plant to produce gasoline for northwest markets. Owned by British Petroleum (BP) the plant makes gasoline for the ARCO brand, a company that...

This mile-long federal dam on the Columbia is the second largest producer of hydropower in the nation, after the Grand Coulee. Unlike the other dams downstream, there is no fish ladder at this dam, finally stopping the most persistent salmon from migrating...

The town of Concrete in the foothills of the northern Cascades once housed the largest concrete plants in the state. Nearly half of the concrete for the Grand Coulee Dam (the largest concrete structure in the world) came from here, as well as material for...

Destruction Island is a soggy, mist-enshrouded outpost three miles off the coast of the Olympic Peninsula. In the 1960's, when the Coast Guard declared its intention to close the 19th century lighthouse and support buildings, romantic public sentiment prevailed...

The Seattle City Light Company operates this and the nearby Ross and Gorge dams, which hold back water on the Skagit River in the north Cascades, and generate electricity for Seattle. The Skagit project started in 1919, and the Diablo Dam, reservoir, and...

This interpretive center is located at a point overlooking the Dry Falls site, one of the most dramatic formations of the Great Spokane Flood, a series of massive flooding events that shaped the landscape of much of eastern Washington around 15,000 years ago...

The DuPont de Nemours Company operated an explosives plant at this site for 70 years, until it closed in 1975, after which the property was sold to the Weyerhaeuser Corporation. Both companies are involved in the clean up of the contaminated plant site, and...

This privately owned dam supplied power primarily to the Daishowa pulp and paper mill in Port Angeles. The dam, completed in 1913, blocks passage for an estimated 390,000 salmon and steelhead, and alters the ecology of a river and delta that drains 19% of...

Unlike most military bases which have a history dating back at least to World War II, Naval Station Everett was built from scratch in the 1990's. It replaced most of the functions of the Naval Station Puget Sound in Seattle, which was shut down in 1995, and...

The longest floating bridge in the world, at 12,596 feet - 7,518 of which float.
A refueling aircraft base on over 6,000 acres in eastern Washington State. Fairchild was a Strategic Air Command bomber base until 1994. Now only KC-135 tanker aircraft are kept here. But with around 70 of the planes, this is said to be the largest refueling...

This reactor at the Hanford Nuclear Reservation was built in 1982 for breeder reactor research and enriched uranium production. Though it was closed in 1992, it has been placed on "Hot Standby" status, with the possibility of producing tritium and medical...

The Ferndale Refinery is one of four refineries on the northern Washington coast, where nearly all of the gasoline produced in the state comes from. The plant processes almost 100,000 barrels of crude per day. It was operated by Tosco until it was purchased by...

The Dawn Mining Company operated the last active uranium mill in the state, near the town of Ford, in eastern Washington, producing around 50,000 pounds per year of material that is further refined into fuel for commercial nuclear power plants. The source is...

Several clusters of coastal gun batteries were built on the shores of Washington State to protect strategic areas from aggressors, starting with the Spanish-American War and continuing through World War Two. The largest group of batteries is around the...

This paper plant, which dominates the Columbia River town of Camas, is one of ten plants in the United States operated by the Fort James Corporation in the manufacture of paper towels and tissues. Fort James, the company formed by the 1997 merger of the James...

Fort Lewis is a busy 86,176 acre Army base, located south of Tacoma. One of the nation's top maneuver installations, Fort Lewis employs over 24,600 people, making it the fourth largest employer in the state. First opened in World War One, the base expanded...

Local resident Emil Gehrke once made numerous decorative windmills from scrap. As he is now deceased, his collection sits in a fenced enclosure in a roadside park near Grand Coulee.

A major aluminum facility, Goldendale makes extrusion billets (typically solid columns of aluminum), and other forms of raw aluminum for consumer products, munitions, and industrial applications. Mined alumina, the source of aluminum, is shipped here from India...
The legendary Grand Coulee Dam is still one of the largest concrete dams in the world, and the largest hydroelectric plant in the country (third largest in the world), generating 6,500 megawatts of power. It is also the origin of the Columbia Basin Project,...