2014 Map of Peterson Ridge

About this map

Peterson Ridge anchors this upland landscape in Umatilla County, where the topography is defined by the deep incisions of the Cottonwood Creek drainage system. The complex network of waterways, including the Middle Fork Cottonwood Cr and South Fork Cottonwood Cr, flows through a series of significant elevations like Goverment Mountain and Saddle Mountain. The southern edge of the survey is dominated by the North Fork Walla Walla River, which carves through the terrain near Blalock Mountain. This area represents a transition into higher elevations, evidenced by landmarks such as Pikes Peak and the settlement of Little Meadows. The presence of established routes like Government Mountain Rd and Birch Creek Rd indicates the vital access points through these steep canyons and timbered ridges, connecting isolated hollows like Pumpkin Hollow to the broader region.