National Geographic : 1954 Jul
© National Geographic Society 102 Sno-Cats Climb to America's Tallest Telephone "Pole," a Relay Station on Mount Rose Near the top of this 10,778-foot Nevada mountain, Bell System maintains the highest link in a chain of 107 radio relay stations stretching between New York and San Francisco. This unattended station (on horizon) uses microwave radio instead of wires or cables; it transmits television programs and hundreds of telephone calls simultaneously. Megaphonelike antennas (inset), which dwarf human visitors, catch east- and west-bound signals, send them through amplifiers to boost their power, and speed them on. If equipment in the Mount Rose tower breaks down, alarms flash in Reno and repairmen rush to the mountain. In winter they use Sno-Cats, skis, snow shoes, and a quarter-mile-long aerial tramway (opposite).