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Photo: The original uploader was Cacophony at English Wikipedia., CC BY-SA 3.0 via Wikimedia Commons
Natural horseshoe-shaped waterfall, 2nd largest by volume in the United States after Niagara Falls. A former paper mill overlooking the falls is being redeveloped. As of 2017, the best views of the falls are from a public viewpoint below the Museum of the Oregon Territory, or by taking the Municipal Elevator to the McLoughlin Promenade.
The Willamette Falls is a natural waterfall in the northwestern United States, located on the Willamette River between Oregon City and West Linn, Oregon. The largest waterfall in the Northwest U.S. by volume, it is the seventeenth widest in the world. Horseshoe in shape, it is 1,500 feet (455 m) wide and forty feet (12 m) high, with a flow rate of 30,850 cu ft/s (874 m3/s). Located 26 miles (42 km) upriver from the Willamette's mouth at Portland, Willamette Falls is a culturally significant site for many tribal communities in the region.
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Clackamas County Historical Society
Only municipal elevator in the United States. Observation deck has a view of city and the Willamette River. If you want a souvenir, ask the elevator operator (yes, it has one) for a "lifetime pass".
This historic house has been mostly restored and furnished with items from 1908 to 1920.
John McLoughlin was the head of the British Hudson's Bay Company in the Oregon Country. His house has been preserved as a museum of the fur trade and settlement of Oregon. Free tours at 15 min past the hour.
Located at the actual end of the Oregon Trail, the museum features costumed historical interpreters.