Nevada is about the "last stand" for telephone open wire. Here are some remaining poles on the original 1915 first transcontinental line route, New York to to SF. These poles replaced the original square poles sometime in the early 1930's when the original 4-wire line upgraded to more circuits. I took a picture in this same area in the late 1980's, when 300 miles of this was still up across Nevada, E/O Reno to Elko. Many traveler's on I-80 remember the line, as it was 4 crossarms all the way, and very obvious even to the non "line-looker".