The importance of roads and highways in the development of United States. Developed roads make the natural wonders of the National Forests accessible to tourists. Snow covered mountain surrounded by trees. Roads help nature lovers reach and see the scenic places in the forests. View from a tunnel. A lake amidst the mountains in a forest. Public highways serve the nation's needs and promote progress and prosperity.
Campgrounds in various national parks in California, United States. A sun rise. A flower against the clouds. Snow covered mountains. A bird sits on a mountain. A forest and barren trees. A car being driven on a mountain road. Fish in a pan and a jar kept on a grill. A woman fills water. The sign of 'Eldorado National Forest Camp Ground Fallen Leaf'. A sun set. The logo of the United States Forest Service Department.
Forest fire in Olympic Peninsula, Washington. Smoke rises from the forests due to fire in the area. Firefighters try to extinguish fire. They run for their lives as burning trees fall on ground. Trees fall in the dark at night as forest fire continues to burn the rich timber land.
Oil drilling and pumping station in Caracas, Venezuela. An oil storage tank. Men at work on machinery in a room. Pipes leading to the oil tank. Oil rig pumping oil is seen in operation at an oil well. Smoke rises in an area in a forest following a small explosion. A wooden shed and pipes in a clearing in the forest. Pipelines passing through the forest reach the shed. People at work in the shed.
American inventor and electrical engineer Lee De Forest seen examining a vacuum tube. Exterior view of Lee De Forest Building in Hollywood, California, with sign on the building that reads 'Lee De Forest Laboratories'. A view of the buildings in Hollywood, including Brown Derby Restaurant (faintly in foreground), NBC Radio City-Hollywood building, Bullock’s Wilshire, and other offices and buildings near intersection of Wilshire Boulevard and Alexandria Avenue. Vehicular traffic on the street. Elevated Hollywood view showing Warner Bros. Hollywood Theater & Studio facilities along Sunset Boulevard, Warner Bros. Hollywood studios and sound stages (sometimes called the Warner Bros. Sunset studios), and the Hollywood Storage Co. building near Sunset Boulevard and Vine Street.
Fire fighters using backpack manual pumps to fight forest fire in United States. Water being pumped by gasoline driven pump, from a stream. Water tanks mounted on trucks for use in fighting forest fires. Aerial view looking down on a Douglas O-2 aircraft in flight over forest. 1930s experiments in using aircraft to deliver water to fight a fire. A man carries a 10 gallon water bomb and another one fixes it below the wing of an aircraft.