1979 Map of Niagara Creek

About this map

Siuslaw National Forest dominates this mountain landscape along the border of Tillamook and Yamhill counties. The area is defined by its timber and water resources, centered on the heights of Mount Hebo and Little Hebo. A specialized industrial and governmental presence is evident through the U S Military Reservation near the summit and various resource extraction sites like the Agency Creek Quarry. The complex hydrology of the Coast Range is well-documented, with drainages such as Agency Creek and Yoncalla Creek feeding into the Nestucca River. Remote infrastructure includes the curiously named Asinine Bridge and a Pumping Station along the Three Rivers. Local geography is further marked by the high-elevation North Lake and South Lake, providing a clear record of land use and forest management in the late 1970s.