Gribblenation

Oregon Route 39 and California State Route 139 form a 166.9 mile corridor which connects US Route 97 in Klamath Falls, Oregon south to California State Route 36 in Susanville, California.  The combined corridor of Oregon Route 39 and California State Route 139 traverse remote regions such the lower Klamath Basin and Californian Cascade Range.  Depicted above is Susanville-Adin Highway as featured in the September/October 1956 California Highways & Public Works after it was rebuilt as part of Federal Aid Secondary Joint Highway District #14.  Susanville-Adin Highway would become the southern segment of California State Route 139 during the 1960s.  Depicted below is the combined corridor of Oregon Route 39 and California State Route 139 as seen on the 2005 Caltrans State Highway Map.   Part 1; the history of Oregon Route 39 and California State Route 139 What is now Oregon Route 39 ("OR 39") was added to the State Highway System as one of the original Ore...