A power plant at Boulder Dam and pictorial depictions of water supplies from Parker Dam and Imperial Dam serving California. The two wings of Boulder Dam power plant, one along each side of the Black Canyon wall. The power plant with different units for generating power. The machinery inside the plant. The major transmission lines that carry power to Los Angeles California metropolitan areas. Two men in the plant near transmission lines. A map depicts the path of power transmission lines. The power plant with turbines. The transmission lines along a desert. A path in the desert. A map depiction of water supply from Parker Dam to the city of Los Angeles. A map depiction of water supply to the Imperial Valley from Imperial Dam. The whole of the Boulder Dam (later Hoover Dam) in view with water gushing through the gates.
Flood relief operations of the Works Progress Administration (WPA) in Pennsylvania during the Great Depression. Flood relief operations by WPA and flood devastation becomes headlines of newspapers. Flood-damaged goods being shoveled out of stores in Sharpsburg. Debris and mud being cleaned from streets and dumped in the Allegheny River. Safety instructions being pasted on telephone poles in McKees Rocks. Water being distributed by tanker trucks to people who need fresh water. People standing in queue to receive water. Salvation Army units dispense food and hot drinks to WPA workers and to lines of affected homeless and unemployed citizens. Interrupted highway and roads due to flood water. Flood-battered furniture being removed from homes in the New Kensington area.
Flood relief operations of the Works Progress Administration (WPA) in Pennsylvania during the Great Depression. Damaged buildings and houses submerged due to flood water. Flood waters stand in Johnstown streets. Ruins on street. An inclined railway carries citizens up a hill. Workers clean the debris. Wrecked vehicles and debris on streets. Sign: ' Have Faith In Johnstown'. Debris and mud being cleaned from streets. WPA workers rescue stranded citizens by canoes and rowboats in Harrisburg: Trucks are loaded with canoes and rowboats arrive at a flooded area. Workers unload boats. Boats being rowed in flooded water. WPA workers rescue stranded citizens. Posh area of Pennsylvania submerged in flooded water. Flood water devastates houses, buildings and factories.
Geysers (hot water spring) found at Yellow Stone National Park in Wyoming USA. Sign board reads. 'Clepsydra Geyser'. Description about the geyser is written on the board. View of the geyser erupting turbulently, accomplished by a vapor phase.
Geysers (hot water spring) found at Yellow Stone National Park in Wyoming USA. Sign board reads. 'Steady Geyser'. Description about the geyser is written on the board. View of the geyser erupting turbulently, accomplished by a vapor phase.
Geysers (hot water spring) found at Yellow Stone National Park in Wyoming USA. Sign board reads 'Cauliflower Geyser'. Description about the geyser is written on the board. View of sinter deposits near the geyser.permitted to testify.
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