The pass east of here through the Cascade Range was once called Wiley Pass after Andrew Wiley, who explored it with other Willamette Valley pioneers in 1859 while seeking a route to move livestock to the grasslands of central Oregon for summer grazing. In 1864, the Willamette Valley and Cascade Military Wagon Road Company formed and submitted plans to the U.S. government for a military road along this route as far east as the mouth of the Malheur River. The land grant in 1966 included 681,512 acres for the road builder, but little road was ever constructed, and much of the land reverted to the state in 1868. A wagon road was completed from the valley to near Sisters and became a toll road known as the Santiam Wagon Road.