1979 Map of Trask Mtn

About this map

Trask Mountain and Sheridan Peak anchor this high-elevation landscape along the boundary of Tillamook and Yamhill counties. The late 1970s terrain is defined by its industrial and recreational utility, featuring numerous resource extraction sites like quarries and borrow pits interspersed with public lands in the Tillamook State Forest and Siuslaw National Forest. Water management is central to the area's geography, visible in the prominent McGuire Reservoir fed by Walker Creek, and the presence of an aqueduct near Meadow Lake. A complex network of logging and access routes, including Headquarters Grade and various jeep trails, provides transit through the heavy timber. Small-scale landmarks like the Lookout on Trask Mountain and the gaging station on the North Yamhill River reflect the ongoing monitoring of this vital watershed.