Was able to make it up to the Powerland Museum in Brooks, Oregon for one of the weekends of the Steam-Up. It was dedicated to steam, but there were tractors, the Northwest Truck Museum, The Caterpillar Museum, military vehicles. 2 days there and still didn't see everything.
https://whulsey.smugmug.com/Tractors/2014-08-23-44th-Annual-Great/i-cbGr2f4