The Trans-Canyon Telephone Line: mule-maintained since 1935
A 1922 tree-strung wire became a CCC-built copper line on 592 pipe poles, rescued hikers for decades, and is now a mapped aircraft hazard.
Ccc
A 1922 tree-strung wire became a CCC-built copper line on 592 pipe poles, rescued hikers for decades, and is now a mapped aircraft hazard.