Which city has the oldest & only outdoor municipal elevator in the US?

The Oregon City Municipal Elevator is a 130-foot (40 m) elevator which connects two neighbourhoods in Oregon City in the U.S. state of Oregon. It is the oldest and the only outdoor municipal elevator in the U.S. and one of only four in the world. The upper portion contains an observation deck which accounts for its flying saucer appearance.

The city of Oregon City includes dramatic changes in elevation. The city's central business district is sandwiched between the Willamette River and a basalt cliff, and is only several blocks wide.

The Oregon City Municipal Elevator has been in operation for over 100 years. The original elevator was constructed in 1915. It was powered by hydraulics and took about three minutes to reach the top of the bluff. It was constructed in this area as a means of transportation for the residents in the city.

The alternative option before the build would have been walking the stairs from the base to the top of the cliff which consisted of 722 steps. In 1925 it was converted to electric power that was being generated by the water flowing from the Willamette River.

It was included on the National Register of Historic places in 2014. It was carrying an average of 500 people per day as of 1989, and by 2018 it had grown to nearly 1,100. Ridership is as high as 1,800 people per day during the city's summer tourist season.