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Monday – Friday: 8am – 5pm
Saturday – Sunday: By Appointment
18044 Newell Ridge Dr
Oregon City OR 97045
Oregon City is divided into upper and lower areas. The lower area is on a bench next to the Willamette River. The upper area is atop a bluff composed of Canemah basalt, which flowed about 2.5 million years ago from a vent 7.5 miles (12 km) to the southeast in the Boring Lava Field. For many years, Indian trails connected the two levels, but stairs were built in the 19th century. In 1915 the town built the water-powered Oregon City Municipal Elevator to connect the two parts, which was converted to electricity in the 1920s. In 1952, a new electric elevator was constructed with the specification that it was to be “as plain as possible and without ornament.”
According to the United States Census Bureau, the city has a total area of 9.29 square miles (24.06 km2), of which, 9.05 square miles (23.44 km2) is land and 0.24 square miles (0.62 km2) is water. The major waterways of Oregon City include the Willamette River, which flows along the northwest side of the city, and the Clackamas River, which merges with the larger Willamette to the north of the city. The Willamette forms the boundary between Oregon City and West Linn; the Clackamas serves as the boundary between Oregon City and Gladstone.