Tiller Ranger Station is a historic U.S. Forest Service compound in Tiller, Oregon, that has served continuously as a district headquarters since the early development of Umpqua National Forest. Established to place administrators near remote forest lands when road access was limited, it remained in uninterrupted use even as other ranger stations lost their original roles after World War II. Much of its historic character comes from Civilian Conservation Corps construction between 1935 and 1942 in the Cascadian rustic style. The complex includes 27 buildings, nine historically significant, and is notable both for its architecture and for preserving the form and function of a Depression-era forest administration center.