A stubby engine house of a Reid power. Engines of that era were water cooled which probably explains the tank. This profile is common. The eccentric of the power is at the far end of the corrugated metal beltway and is partly obscured. This power was built to fit the contour of the landscape.
Wells are nearby and the jacks can be pumped by pulling on the rod lines.
Part of a power on the bank of the Allegheny River. Red was a favorite color of some operators. This is an old power that was run by an electric motor in its last days. The motor replaced the natural gas engine, most of which was kept in place to serve as a motor mount after the cylinder etc. were removed. You can see that the original engine installation was in a building of which some foundation is left.