OREGON PEAK
Yuba County - California Department of Forestry
November 8, 1946: "Construction of eight miles of telephone line, connecting Challenge Ranger station and Oregon Peak lookout, in the Plumas National forest, was started Monday by a crew of 166 forest communication men of the California region, it was announced yesterday by Supervisor C. A. Gustafson." (Nevada State Journal)
December 19, 1946: "Construction of eight miles of Telephone line in the Plumas National Forest, connecting Challenge Ranger Station with Oregon Peak Lookout was started." (Feather River Bulletin)