Pivot Point Interpretative Plaza is located in downtown Yuma,AZ.
We toured this outdoor exhibit of a steam locomotive that sits on the original tracks, at the exact site where the first real train entered Arizona in 1877.
They were able to preserve a few artifacts from that time, a concrete pillar that was part of a swing span pivot bridge. The rail bridge would pivot to allow steam boats to pass.
Their website said they have a interpretive sound system that is suppose to recreate the sound of steam boats passing, but it was not working when we were there. They did have storyboards posted along the walkway that were quite interesting to read .
Steam Engine controls.