2011 Map of Conley

About this map

The Grande Ronde Valley floor in Union County is defined by an intricate network of waterways and drainage systems essential to this agricultural landscape. The Grande Ronde River meanders across the northeast, while the central valley is characterized by a high concentration of sloughs and man-made water management features. Prominent labels include Wright Slough, Pierce Slough, and Spring Slough, alongside the McAlister Ditch and Gekeler Slough, illustrating a history of water diversion for the surrounding valley lands. The small settlement of Conley sits near the northwest corner, while the eastern portion of the map is marked by Conley Lake. Infrastructure for the broader region is represented by the La Grande Municipal Airport in the southwest, connected by roads such as Hot Lake-Airport Rd and the RR 2 rail line. This 2011 survey by the U.S. Geological Survey captures the modern configuration of family-named roads like Hamilton Rd and Godley Rd that segment the productive valley floor.