From facebook, I am not associated. Roger Kujawa is active on Rock Island and Peoria IL discussion boards: https://www.facebook.com/agw.railway/po ... 4068574259

"Roger Kujawa

Want to own a locomotive? Message me for information. This 25 ton Plymouth locomotive sits in Hills, Iowa on and ex Rock Island Line. It is owned by the Eldon C. Stutsman Company and has been unused for about 20 years. It is at the end of the track and almost forgotten. The loco is still in the Union Railroad of Oregon paint from when it was purchased in 1992. Plymouth model HLC-2 (25-ton) gas-mechanical switcher, c/n 2922, built June 1928. Built for Guy F. Atkinson (Wallace, CA). Apparently first came to Union Railroad of Oregon in the mid-1930's, owned either by the U.S. Bureau of Reclamation or General Construction Company. The unit (possibly as General Construction #3) was used in the construction of the Owyhee Dam, nearby to Union. Sold to Union Railroad of Oregon in late 1937/early 1938. The #1 was the sole locomotive used on the UO for the next 40 years. Sold to Eldon C. Stutsman Trucking Co. (Hills, IA) in 1992."

Edit: From July 7 post "Contact the Stutsman Company if you are interested in buying it.
This 25 ton Plymouth locomotive sits in Hills, Iowa on and ex Rock Island Line. It is owned by the Eldon C. Stutsman Company and has been unused for about 20 years."