2014 Map of Andies Prairie

About this map

Umatilla National Forest dominates this landscape along the boundary of Umatilla and Union counties, where the high ridges of the Blue Mountains define the drainage patterns of the region. The high-altitude meadows of Horseshoe Prairie and Andies Prairie serve as central landmarks, situated along the path of the Weston-Elgin Hwy. This 2014 survey documents a complex network of forest roads and ridges, such as Ninemile Ridge and Pedro Ridge, which separate the deep incisions of Glenn Canyon and Steele Mill Canyon. The headwaters of the North Fork Umatilla River and Phillips Creek originate here, supported by numerous named springs including English Spring, Odessa Spring, and Portuguese Spring. The map provides a contemporary record of the land use and forest management within these protected federal lands, illustrating the modern infrastructure that overlays the traditional topography of Buck Mountain and Huckleberry Mountain.