2017 Map of Salmon Fork

About this map

Salmon Fork and Thirtymile Cr carve through the high plateaus of Wheeler County on this modern geological survey, which illustrates the complex drainage systems of north-central Oregon. The map centers on a deeply dissected landscape where the Gilliam County and Wheeler County line bisects remote canyons. Historically, the region was defined by its proximity to the timber operations of the mid-20th century, a legacy reflected in the presence of the Kinzua Airport and the network of access roads like Kinzua Rd and Hoover Creek Rd. The southeastern corner of the quadrangle includes a portion of the Umatilla National Forest, providing a sense of the boundary between public lands and the private ranchlands of the basin. Distinctive landmarks such as Steamboat Rock and the towering Rettie Butte serve as navigation points among the numerous named drainages, including Jump Off Joe Canyon and Cabin Canyon.