Gato Pumphouse interior - Dick Bell photo *LINK* *PIC*

John;
Thank you for clarifying those points. I can only relate what I have been told.
The attached picture below was taken by Dick Bell in July of 1983. It was being maintained at that time by the Ute Tribe, probably for the planned railroad.
From this angle, you can see that what I thought was a "cap" on top of the intake line to the steam engine is in fact a "tee" with a cap on top. The branch off of the tee connects to the steam line that runs to the discharge end of the pump. So I was wrong there as well; all of the piping is there. The pipe sticking out the top of the vertical boiler may be a relief valve.
This view also shows clearly the connections for the intake and exhaust lines on the steam engine end of the pump. The discharge pipe details are also visible.
You can also see the box hanging on the wall where the pump's tools were kept. A pair of grates for the vertical boiler were kept there in the corner; it is my understanding (and I could be wrong again -- I have not been there in person) that they have since disappeared.
As John mentioned, this is private property. What's more, anything in the pumphouse is best left there; removing anything only detracts from the pumphouse as a whole. It is it's completeness that makes it such a jewel; to part it out makes the individual "stuff" just more steam and railway items scattered across the country.
Thanks again to Dave Dye, Bill Pratt, and Dick Bell for share their photographs with us.
-James Hefner
Hebrews 10:20a