Hi Patricia. The turntable still exists and is operable. I have personally had the pleasure of doing a bumpy orbit, powered by the yellow gasoline engine.
Unfortunately, all the wonderful steam engines that for so long populated the roundhouse are dispersed to the 4 corners of the US. The roundhouse itself burned down a few decades ago.
Not a very good picture. The 5 panel pano is mapped with FullFrame projection which did the best job of preserving the roundness of the pit, at the price of distorting the horizon. That shadow is me at the top of my 10 foot high, roll-around PanoLadder. I would like to go back and redo all these shots with a D800 and a really good lens. This was taken in 2008 as part of a quick & dirty effort to promote the site for film use after the city bought it. The large building in the background is the one in the photo above.
No book is planned, too much work for too little reward. But these shots are wildly popular with architects, lawyers, and people who are into local history, and I sell a lot of them.