2014 Map of Big Rock Flat

About this map

Umatilla National Forest defines this high-elevation landscape, where a complex network of forest development roads provides access to the ridges and flats of Morrow County. The terrain is characterized by broad plateaus such as Big Rock Flat and Snowshoe Flat separated by deep drainages like Emery Canyon and Raber Canyon. These named canyons and springs suggest a history of seasonal usage and water management in a dry upland environment. Notable landmarks such as Barlow Butte and Opal Butte rise above the surrounding flats, while many features bear the names of early settlers or local figures, including Davidson Canyon and Harris Canyon. This 2014 survey documents the modern management of the timber and grazing lands, tracing the paths of Toll Rock Rd and Tupper Rd as they navigate the ridges of Beaver Slide Ridge and Hothole Ridge.