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Aqueduct, mountains, transportation, dam, Spillway from Lake Benmore, 1950's, TPHV01P01_01Aqueduct, mountains, transportation, dam, Benmore Generating Plant, 1950's, TPHV01P01_02Albury, Australia, Dam, 1950's, TPHV01P01_03Albury, Australia, Dam, 1950's, TPHV01P01_03.1716Shasta Lake Dam, California, 1950's, TPHV01P01_04Shasta Lake Dam, 1950's, TPHV01P01_04.1716Glen Canyon Dam, Lake Powell, 1950's, Tonalea Coconino County, Arch-gravity dam, Colorado River, Page, Arizona, TPHV01P01_05Edmonston Pumping Plant, Tehachapi Mountains, Pump Plant, Parking Lot, Mountains, California Aqueduct, 1950's, TPHV01P01_06Edmonston Pumping Plant, Tehachapi Mountains, California Aqueduct, 1950's, TPHV01P01_07Shasta Lake Dam, TPHV01P01_08Shasta Lake Dam, TPHV01P01_09Lake Mead, Hoover Dam, TPHV01P01_10Lake Mead, Hoover Dam, TPHV01P01_11.1716Lake Mead, Hoover Dam, TPHV01P01_12Lake Mead, Hoover Dam, TPHV01P01_13Lake Mead, Hoover Dam, TPHV01P01_14Lake Mead, Hoover Dam, TPHV01P01_15Lake Mead, Hoover Dam, TPHV01P01_16Lake Mead, Hoover Dam, TPHV01P01_17.1716Lake Mead, Hoover Dam, TPHV01P01_18Lake Mead, Hoover Dam, TPHV01P01_19Lake Mead, Hoover Dam, TPHV01P02_01.1716Hoover Dam, TPHV01P02_02.1716Hoover Dam, TPHV01P02_03Hoover Dam, TPHV01P02_04Emblems, State Logos, Eagle, bar-relief, Hoover Dam, TPHV01P02_05.1716Hoover Dam, TPHV01P02_06Hoover Dam, TPHV01P02_07Hoover Dam, TPHV01P02_08Francis turbine, Hydropower, generator, Hoover Dam, TPHV01P02_09Francis turbine, Hydropower, generator, Hoover Dam, TPHV01P02_09BFrancis turbine, Hydropower, generator, Hoover Dam, TPHV01P02_10Francis turbine, Hydropower, generator, Hoover Dam, TPHV01P02_10.1716turbine, generator, Hoover Dam, TPHV01P02_11turbine, generator, Hoover Dam, TPHV01P02_11BFrancis turbine, Hydropower, generator, Hoover Dam, TPHV01P02_12Whirlpool, Power House, Hoover Dam, Colorado River, TPHV01P02_13.1716Hoover Dam, at the bottom, TPHV01P02_14Hoover Dam, TPHV01P02_15Hoover Dam, looking-up, TPHV01P02_16Hoover Dam, TPHV01P02_16BHoover Dam, TPHV01P02_17Hoover Dam Water Intake Towers, TPHV01P02_18BHoover Dam, TPHV01P02_18CHoover Dam, TPHV01P02_19Hoover Dam, TPHV01P03_01Hoover Dam, TPHV01P03_02Generator, Turbine, Hoover Dam, TPHV01P03_03Hoover Dam, Generator, Turbine, TPHV01P03_03BHoover Dam, Turbine, TPHV01P03_04Francis turbine, Hydropower, generator, Hoover Dam, TPHV01P03_05Underground Hallway, Vanishing Point, Hoover Dam, TPHV01P03_06Underground Hallway, Vanishing Point, Hoover Dam, TPHV01P03_07Underground Hallway, Vanishing Point, Hoover Dam, TPHV01P03_08Hoover Dam, TPHV01P03_09Niagara Falls Dam, TPHV01P03_10Niagara Falls Dam, TPHV01P03_11Niagara Falls Dam, TPHV01P03_11.2047Niagara Falls Dam, TPHV01P03_11BW.2047Niagara Falls Dam, TPHV01P03_12Niagara Falls Dam, Bridge, TPHV01P03_13Niagara Falls Dam, TPHV01P03_14Control Room, Niagara Falls Dam, TPHV01P03_15Control Room, Niagara Falls Dam, TPHV01P03_16Control Room, Niagara Falls Dam, TPHV01P03_16Bturbine, generator, rotor, Niagara Falls Dam, MRO, TPHV01P03_17Aswan High 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River, Oregon, TPHV01P05_16Bonneville Dam, Columbia River, Oregon, TPHV01P05_17Columbia River Drainage map, United States Map, TPHV01P05_18Wells Dam signage, TPHV01P05_19Wells Dam, TPHV01P06_01Insulators, Wells Dam, TPHV01P06_02Wells Dam, TPHV01P06_03Wells Dam, TPHV01P06_04Wells Dam, TPHV01P06_05Wells Dam, TPHV01P06_06Wells Dam, TPHV01P06_07Wells Dam, TPHV01P06_08Wells Dam, TPHV01P06_08BWells Dam, TPHV01P06_09Interior, Inside, Indoors, Dials, Instruments, Panel, Control Room, Wells Dam, TPHV01P06_10Control Room, Wells Dam, Interior, Inside, Indoors, Dials, Instruments, Panel, TPHV01P06_11Control Room, Interior, Inside, Indoors, Dials, Instruments, Panel, Wells Dam, TPHV01P06_12Switches, Interior, Inside, Indoors, Dials, Instruments, Panel, Control Room, Wells Dam, TPHV01P06_13Switches, Dials, Instruments, Panel, Control Room, Interior, Inside, Indoors, Wells Dam, TPHV01P06_13.0144Pipes, Valve, Wells Dam, TPHV01P06_14Wells Dam, TPHV01P06_15Wells Dam, Pipes, Valves, TPHV01P06_16Governer, 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