Singular Smokestack

This tall brick stack (built in 1887) stands at the Union Pacific's Albina Yard in Portland. I suspect that I was probably trespassing when I took the photo, so I took my shots, packed up and got my tail out of there before security found me.

 

I case anyone needs a few clues regarding scale, I believe that it is 100-150 feet high. (Maybe taller??)

Done