Tualatin River

West Linn is a city in Clackamas County, Oregon, United States. A southern suburb within the Portland metropolitan area, West Linn developed on the site of the former Linn City, which was named after U.S. Senator Lewis F. Linn of Ste. Genevieve, Missouri, who had advocated the American occupation of the Oregon territory as a counterclaim to the British. The Sullivan hydroelectric plant opened in 1889, and harvested energy from nearby Willamette Falls. The adjacent Willamette Falls Paper Company began operations the same year. As of the 2020 census, the city had a population of 27,373.

Portland General Electric's (PGE) T. W. Sullivan Hydroelectric Plant is a hydroelectric dam on the Willamette Falls built between 1888 and 1895. It is the source of the nation's first long-distance power transmission. The plant first opened with Station A in 1889. In 1895 a second powerhouse was built on the same dam, Station B, and Station A was removed. Station B. In 1953 Station B was renamed after the engineer, Thomas Sullivan, who designed it and the nearby paper mills. The Willamette Falls Paper Company was on the northwest bank, whereas the Blue Heron paper mill was across the river in Oregon City. By that year, the plant was generating between 11,000 and 17,500 kilowatts, which it still does today. PGE's Sullivan Plant at Willamette Falls is one of only a few dozen hydro-plants in the country officially designated as "Green." In the 1920s a portion of the paper mill was put on top of the dam, which is still operating.

The Willamette Falls is a natural waterfall on the Willamette River between Oregon City and West Linn, Oregon, in the United States. It is the largest waterfall in the Northwestern United States by volume, and the seventeenth widest in the world. Horseshoe in shape, it is 1,500 feet (460 m) wide and 40 feet (12 m) high with a flow of 30,849 cu ft/s (874 m³/s), located 26 miles (42 km) upriver from the Willamette's mouth. Willamette Falls is a culturally significant site for many tribal communities in the region. Opened in 1873 and closed since 2011, the Willamette Falls Locks allowed boat traffic on the Willamette to pass into the main Willamette Valley.

New Era is an unincorporated community in Clackamas County, Oregon, United States. Its post office opened in 1876 and closed in 1940.

The Willamette Falls Locks are a lock system on the Willamette River in the U.S. state of Oregon. Opened in 1873 and closed since 2011, they allowed boat traffic on the Willamette to navigate beyond Willamette Falls and the T.W. Sullivan Dam. Since their closure in 2011, the locks have been classified to be in a "non-operational status." In 2023, work began to repair the locks, which are expected to reopen in 2026.Located in the Portland metropolitan area, the four inter-connected locks are 25 miles upriver from the Columbia River at West Linn, just across the Willamette River from Oregon City. The locks were operated by the United States Army Corps of Engineers and served primarily pleasure boats. Passage through the locks was free for both commercial and recreational vessels. The locks were added to the National Register of Historic Places in 1974 and designated as an Oregon Historic Civil Engineering Landmark by the American Society of Civil Engineers in 1991.The locks comprise seven gates in four chambers which lift up to 50 feet (15 m) elevation change (depending on tides and river flow) with a usable width of 37 feet (11 m). The system is 3,565 feet (1,087 m) long, and can accommodate vessels up to 75 feet (23 m) long. Each of the four concrete constructed chambers are 210 by 40 feet (64 by 12 m).

The Willamette Falls Paper Company (formerly the West Linn Paper Company) is an American paper mill located just above the Willamette Falls on the northwest bank of the Willamette River, in the city of West Linn, Oregon. It sits across the river from the site of the defunct Blue Heron Paper Company in Oregon City.

USS Oregon City (CA-122), the lead ship of the Oregon City class of heavy cruisers, was laid down 8 April 1944 by Bethlehem Steel Company, Quincy, Massachusetts; launched 9 June 1945; sponsored by Mrs. Raymond P. Canfield, wife of the City Commissioner of Oregon City, Oregon. Newspapers showed pictures of celebrated radio, film and television personality Bing Crosby adding a bit of glamor to the launching. The Oregon City was commissioned 16 February 1946.Oregon City was named for the city in the state of Oregon. Oregon City departed Boston 31 March 1946 for shakedown out of Guantanamo Bay Naval Base, then returned to Boston in mid-May. Oregon City became flagship of the United States Fourth Fleet on 3 July and the following month began dockside training of reservists in Philadelphia. From 6 to 19 October she made a post-war Reserve Training Cruise, to Bermuda, then sailed to Boston and remained until the following March with a somewhat reduced complement. Reassigned to the 2nd Fleet in January 1947, Oregon City's crew had returned to full strength by the time she sailed for Guantanamo Bay 30 March. After three weeks of exercises she returned to Boston, not sailing again until 6 June. She embarked midshipmen at Annapolis on the 21st, then sailed for the Canal Zone and the Caribbean on an annual summer training cruise. Oregon City debarked her midshipmen at Norfolk in mid-August and sailed for Philadelphia and deactivation. She was decommissioned on 15 December 1947. She was the only Oregon City-class ship to be decommissioned soon after completion, and was not selected for conversion to a missile ship. Her bell was sent back to Oregon where it is on display at the Museum of the Oregon Territory in Oregon City, Oregon. She was stricken 1 November 1970, and sold 17 September 1973 to Union Minerals and Alloys Corporation, NYC, and scrapped in Kearny, New Jersey the following year. Her 5" gun houses could still be seen well into the 90s at Philadelphia Navy Yard.The bell originally from USS Oregon City was presented to Portland Area Naval Reserve through the people of Oregon City, Oregon on 8 March 1975 and it is now on display at Museum of Oregon Territory. A model of her is also on displayed there.

The Blue Heron Paper Company was a paper mill at Willamette Falls in Oregon City, Oregon, on the southeast bank of the river across from the Willamette Falls Paper Company, the T.W. Sullivan hydroelectric plant, and the Willamette Falls Locks and canal. In its operation from 2000 to 2011, the mill produced recycled paper products ranging from newsprint to paper bags. Facing increased competition from China, the company filed for chapter 11 bankruptcy in 2009. By 2011, the mill could no longer remain in operation due to the rising paper prices and lack of investors.The confederated Tribes of Grande Ronde acquired control of the land in 2019 for $15.25 million, and are now planning a cultural and community center. Four other tribes cite ancestral connections to the area. Said Trustee Toby Patrick, "Money makes a huge difference in everything that we do, and it takes us away from who we truly are as Indian people, and how we survived before we had money. We had each other and that's how we survived."

The Morton Matthew McCarver House, also known as Locust Farm, was built in 1850 in Oregon City, Oregon, United States, for Morton M. McCarver.

West Linn High School is a public high school in West Linn, Oregon, United States. It is one of three high schools in the West Linn-Wilsonville School District, the others being Wilsonville High School and Riverside High School.

The McLoughlin Promenade is a scenic pathway located on Singer Hill Bluff, on the southeast bank of the Willamette River overlooking Oregon City in the U.S. state of Oregon. It was constructed 1936–1939 on land once inhabited by the Molala and other indigenous peoples. Named after Oregon pioneer John McLoughlin who donated his personal real estate for the purpose of a city promenade, the design and implementation of it was part of a joint public works effort between Oregon and the United States government. The pathway courses 100 feet (30 m) above Oregon City and features the Grand Staircase and the man-made Singer Creek Falls. Lighting was added by the local Kiwanis club in 1972, and the Lee Kelly Moontrap bas-relief addition at the bottom of the falls was sponsored by the Rotary Club in 2011.

The James Milne House is an historic Gothic Revival home built by carpenter James Milne, in what is now the Historic McGloughlin Neighborhood in Oregon City, Oregon, United States. It is listed on the National Register of Historic Places. Milne, an immigrant from New Brunswick, Canada, designed and built the home in 1869.