 sutro tower is a  three-pronged antenna tower near clarendon heights in san francisco, california. rising from a hill between twin peaks and mount sutro, it is a prominent part of the city skyline and a landmark for city residents and visitors. ==history== before the construction of sutro tower, television reception in san francisco was spotty because the many hills of the city would block the line-of-sight television signal. the great height of the new tower helped to resolve that problem. transmitters had been scattered throughout the bay area, including at san bruno mountain, mt. allison, monument peak, and mt. diablo. by having all the main bay area television station transmitters in one location, reception was improved by allowing a receiving antenna pointed in a single direction to receive all those stations rather than a subset. local residents opposed the tower even before it was completed, including criticism of the aesthetic effect the tower would have on the rest of san francisco. san francisco writer herb caen once wrote, "i keep waiting for it to stalk down the hill and attack the golden gate bridge." acknowledging both displeasure and affection for its undeniable prominence on the city's skyline, it is sometimes referred to light-heartedly as the sutro monster or space claw. due to its shape and its appearance soon after the construction of the transamerica pyramid, it was also nicknamed "the box the pyramid came in." when first built, the long legs of the tower were illuminated at night with long tubes of white lig
Buildings_and_structures_completed_in_1973 Buildings_and_structures_in_San_Francisco,_California Landmarks_in_San_Francisco,_California Radio_masts_and_towers_in_North_America Towers_in_California Transmitter_sites_in_the_United_States