Whitman County Wheat Harvest

The difficult terrain of Whitman County, Wash., was managed by custom threshers and a unique tramway system during the wheat harvest

On the move in August 1920: a Holt Caterpillar Model 45 pulling what appears to be a New Russell thresher
On the move in August 1920: a Holt Caterpillar Model 45 pulling what appears to be a New Russell thresher. The Stockton Holt Caterpillar 45 was manufactured from 1915 to 1921.