In an outbreak of hostilities between city officials and property owners, a huge gap is cut through the water pipe to Los Angeles at Jawbone Canyon in California. (It is also known as the Los Angeles Aqueduct Pipeline, or the Jawbone Siphon, stretching 233 miles from Owens Lake and the Owens Valley to Los Angeles). Engineers and officials inspect the broken water pipe that had been dynamited by angry ranchers in a land dispute.
General Hugh L. Scott seated on a chair demonstrates Indian sign language. General demonstrates two sign for Cut Bank Creek. The sign demonstrated indicates steep wall of canyon.
Construction of the Hoover Dam in the United States. Civil engineers at the dam site. Views of dam site, and reclamation engineers rush towards the dam site for investigation. Engineers remove rock by placing dynamite. The construction underway. Explosions rise. Views of four diversion tunnels, two on each side (the Nevada side and Arizona side). Front end loader remove dirt and load onto dump truck. Engineers wok in the tunnel. Engineers climb rope suspended from the canyon wall. In November 1932, the Colorado river is diverted. Trucks carry construction material and engineers at work during construction of the dam. Clip is from a production narrated in 1962.
Pilots from the U.S. Army Air Service Advanced Flight Training School, at Kelly Field, San Antonio, Texas, fly through the Canyon of the Rio Grande River, in De Haviland DH 4 aircraft. Aerial view from a DH 4 aircraft, of another flying alongside the rocky walls of the river canyon. Glimpses of the camera plane's wing and strut with rocky cliffs behind. Views of the river far below and the other DH 4 flying much lower. View from camera being held high above cockpit, showing upper surface of DH 4 wing, fuselage, and empennage. A DH4 flying close to the canyon wall.View from camera, shooting above the top of DH 4 wing, upward and back across the aircraft tail. It shows walls of canyon surrounding the aircraft. Closeup of DH-4 displaying number "53" on fuselage. It is silhouetted against the sky as it flies in the canyon. More views of canyon walls seen through struts of camera aircraft. More closeups of airplane number 53. View from camera plane of five other DH 4s in formation silhouetted against white cumulus clouds. Pilot and gunner in cockpit of DH 4 in flight. Five DH 4s in Vee formation overhead with clouds behind them. More shots of aviators in cockpit of camera plane and of the five airplanes in formation.
Monuments ruins of native American Indian civilizations in Arizona, United States. People sit at the side of a waterway near a ruin. They view the ruined monuments. Canyons, ridges, rock formations and water streams in Oak Creek Canyon. A 1930s car on a road in Oak Creek Canyon. Tourists look at the ruins prehistoric trees turned to stone in the Petrified Forest National Park. Close-up views of trees in the petrified forest, and of various cross-sections cut and polished. Elevated view of colorful ridges in the Painted Desert on the Little Colorado River. View of Sunset Crater and dried rock of old lava flows from the volcano. Scenes of the Grand Canyon and a man and woman looking out over the Grand Canyon. Montage of scenes of farmers, American Indians, prospectors, and miners in Arizona. Mining operations and smoke rises from the chimney of a smelting factory. Saguaro cactus plants with the setting sun behind at dusk.
Activities of the students at the Heidelberg American High School in Germany. Interior: A guide removes the jawbone of the Heidelberg man from a showcase of the Museum of the Palatinate and shows it to a student group. The students and the guide enter a room and gather near a showcase. The students assemble in the library of the "German-American Teen-agers Club" and participate in a discussion.