1/8 scale Willamette steam donkey. We used this as the yarder. The tarp conceals an air compressor setup, which was used in lieu of steam to operate the donkey. In the back one can see one of the 1/8 scale locomotives that was being operated on the Willow Creek Railroad that day - August 3, 2008, during the Steam-Up at Antique Powerland in Brooks, Oregon.