No steam engines there now, but there could have been....
At one time, that site was targeted for a railroad museum. That roundhouse is in White River Jct. (WRJ) Vermont - there was an article about WRJ in Trains not too long ago. Anyhow, there was a plan for a railroad museum to use that roundhouse, the WRJ station, and/or the Westboro, NH roundhouse across the river for a museum. The plans never got farther than some displays at the WRJ station, where a B&M steamer is on display.
My great-grandfather was the conductor for the Woodstock Railroad, which ran from Woodstock Vermont to WRJ. It's ROW passed right by that roundhouse.