According to a report from my friend Olin who visited the Colusa & Lake roundhouse in Colusa,CA friday, the roundhouse is finally coming down. Last time I visited, it was in extremely bad shape and I was surprised it still stood at that time. Seems no historical groups are interested in trying to save anything of the narrow guage 4 stall structure though I've heard extensive measurements and drawing have been made of it for a replica at some future point somewhere. A real shame. This is a really neat building.