1989 Map of Thirteenmile Creek

About this map

The Colville Indian Reservation and Colville National Forest meet in this rugged corner of Ferry County, defined by a series of numbered drainages feeding the Sanpoil River. The landscape follows a strictly ordered pattern of northern tributaries, including Thirteenmile Creek, Seventeenmile Creek, and Twentyone Mile Creek, illustrating how geographic naming conventions often followed distance-based intervals from a central point or trail. Human activity is sparse but specialized, evidenced by a Gravel Pit and a Gaging Sta BM 1952 along the western riverbank. The terrain is marked by steep elevation changes, such as those found at Rattlesnake Gulch, where the West Fork of the Sanpoil joins the main channel. This provisional survey captures the transition between forest management and tribal lands in the late twentieth century, showing a territory largely shaped by its hydrology.