2020 Map of Johnny Cake Mountain

About this map

The Umatilla National Forest defines the topography of this region along the border of Morrow and Grant counties. The landscape is carved by an intricate network of drainages, including the North Fork John Day River which cuts through the southeastern corner. High points such as Johnny Cake Mtn and Neal Butte rise above a series of named canyons, including Mulligan Stew Canyon and East Fork Boneyard Canyon. This area is characterized by high plateaus like Mahogany Flat and Gilman Flat, with numerous vital water sources such as Buckhorn Spring and Tonto Spring providing relief in the arid terrain. The mapping of Big Wall Cr and its tributaries reveals a complex drainage pattern essential for understanding the historical land use and water rights in this part of northeastern Oregon.