My Brother in law Ralph took this photo in September of 2006 in Edgarton Wisconsin at Thresherman's Park . Every year on Labor Day Weekend, ( Unfortunately "Only" labor day weekend.) Thresherman's Park in the village of Edgarton wisconsin holds an open house special operating event known as the Rock River Thresheree. Circling the grounds is the two foot narrow guage Rock River Cannonball steam train. This is only a once a year operation for steam enthusiasts, but is a unique operation to see.