Search for all of "Colorado River"

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	Title	Description
201	Hoover Dam construction	View of construction in Black Canyon at the Hoover Dam site. Construction workers are standing by the railroad tracks looking at a dynamite blast that is taking place in the distance. The Colorado River is visible as...
202	Blasting at Hoover Dam site	View of construction in Black Canyon at the Hoover Dam site. Construction workers are standing by the railroad tracks looking at a dynamite blast that is taking place in the distance. The Colorado River is visible as...
203	Hoover Dam construcion -- blasting	Shows the construction of Hoover Dam. One of the portals of the diversion tunnels is visible. Dynamite blasting is taking place in the canyon and trucks and various construction buildings are visible on the cofferdam. Also shows some...
204	Scalers -- Hoover Dam site	Shows men scaling the walls of Black Canyon to set dynamite blasts. Below part of the Colorado River is visible.
205	Black Canyon prior to dam construction	Shows a surveyor perched on the side of Black Canyon surveying the area preliminary to the construction of Hoover Dam. The Colorado River is visible below. On the back of the phot is hand-written "Rigger-rodman working with topographical...
206	Looking up Black Canyon from the dam site	Upstream view of Black Canyon and the Colorado River from the Hoover Dam construction site. A temporary dirt road is seen on the left side of the canyon floor, along with some scaffolding. Stray lumber is floating by...
207	Portals, Hoover Dam construction	"Shows men placing dynamite to flood entrance blocks away from #3 and #4 Arizona side."(inscription on back of photo) The portals to the diversion tunnels are visible. The Colorado River is shown below the portals and buildings and trucks...
208	Aerial view of sundown in Black Canyon at the Hoover Dam construction site	View of the Colorado River flowing through Black Canyon at dusk. Bridges and catwalks illuminated by electric lights span the canyon over the river. Other electric illumination is seen throughout the construction site.
209	Preliminary construction at Hoover Dam site	"Down-stream from Observation Point -- note tunnel in center of picture. Trucks hauling muck from Nevada portals must go through this tunnel to dumping grounds one mile away. [150 feet to river straight down]"-- [hand-written inscription on back...
210	Hoover Dam construction	"Down stream from Observation Point. Buildings on the right side are water sedimentation plants. Water treated for Boulder City. Left side is Arizona side of River." [hand-written inscription on back of photo] This photo was taken high...
211	Hoover Dam construction	"Downstream from upper portals. Note the two portals on Arizona side of river and new suspension bridge under construction."[hand-written inscription on the back of the photo] Cables are visible overhead and a truck is also in the picture.
212	Sundown in Black Canyon at the Hoover Dam construction site	Night view of the Colorado River flowing through the Hoover Dam construction site in Black Canyon. Catwalks are seen suspended over the river. The site is illuminated by electric light.
213	Hoover Dam construction	"Upstream from observation point. Note car going down road." [hand-written inscription on back of photo] Taken from high above the Colorado River, this view shows roads, bridges, buildings and structures, and a car on the side road.
214	Hoover Dam construction	"Looking int.[o] canyon from observation point -- up river bridge is for trucks hauling muck out of upper portals." [hand-written inscription on back of photo] Taken from an observation point high above Black Canyon, this view shows bridges spanning the...
215	Hoover Dam construction	"Upstream toward lower portals." [hand-written inscription on back of photo] This view shows the Colorado River in Black Canyon during the early stages of the construction of Hoover Dam. A suspension bridge across the river can be...
216	Hoover Dam site from the Nigger Head, Diversion tunnel construction	Aerial view of the Colorado River flowing through Black Canyon during early construction at the Hoover Dam site. A dirt road runs alongside the river and catwalks are suspended over the river.
217	Hoover Dam construction -- various phases	This postcard shows the construction of Hoover Dam in four different stages. All views were taken from the same point looking upstream. The first image shows Black Canyon and the Colorado River at the very beginning of construction...
218	Looking up Hoover Dam during construction of the diversion tunnels	Looking upstream on the Colorado River flowing through Black Canyon at the Hoover Dam construction site. Bridges and catwalks are suspended over the river and the newly-dug mouths of the diversion tunnels are seen on both sides of the canyon....
219	Construction -- Hoover Dam	Handwritten inscription on back of photo: "Rex motor mixer that has been picked off a white truck and being swung into position at tunnel #1 with load of cement." Shows hoisting machinery, railroad tracks, a steam locomotive, a...
220	Hoover Dam construction	View of the Hoover Dam construction site showing equipment being lowered by cable, buildings, and other construction equipment. The Colorado River is partially visible as is the cofferdam.
221	Looking up Black Canyon during construction of the diversion tunnels	Looking upstream on the Colorado River flowing through Black Canyon at the Hoover Dam construction site. Bridges and catwalks are suspended over the river and the newly-dug mouths of the diversion tunnels are seen on both sides of the...
222	Hoover Dam construction	Panoramic view of the Hoover Dam construction site. One of the lower portals to a division tunnel can be seen. Buildings, trucks, and the cofferdam are also visible. A portion of the Colorado River is...
223	Hoover Dam construction	Shows a general view of dam construction. Cables, buildings, and roads are visible. Concrete pouring forms can be seen at the bottom of the canyon. A portion of the Colorado River is also visible. The...
224	Hoover Dam construction	Shows one of the portals to the diversion tunnels. A portion of the Colorado River is visible as well as construction workers and construction buildings.
225	Hoover Dam construction	Handwritten inscription on back of photo: "Looking upstream into Black Canyon toward Boulder damsite after river had been diverted thru diversion tunnels Nos. 3 and 4. Temporary back-wash dike seen immediately upstream from tunnel out..." Portals to...
226	Hoover Dam -- diversion tunnels in use	Downstream face of Hoover Dam showing water discharge from tunnel outlets. Dam is completed, power houses and part of the Colorado River are visible as well as a cableway above the canyon.
227	Hoover Dam -- diversion tunnels in use	Downstream face of the completed Hoover Dam with the diversion tunnels in use. The outlet works and power houses are visible. A cableway spans the canyon and some transmission towers are visible high up on the canyon walls....
228	Looking up Black Canyon during the construction of the diversion tunnels	View of the Colorado River running through Black Canyon at the Hoover Dam construction site. Workers can be seen walking over bridges and catwalks that are suspended over the river, and on dirt roads that run alongside the river. ...
229	Aerial view of Hoover Dam	Aerial view of Hoover Dam after completion. The diversion tunnels are in use and the downstream face of the dam and the power houses are visible. There are transmission towers on the canyon walls above and one of...
230	Aerial view of Hoover Dam	Aerial view of Hoover Dam after completion. The reservoir (Lake Mead) is visible behind the dam along with the intake towers. Below the dam, the diversion tunnels are in use and part of the Colorado River is visible....
231	Aerial view of Hoover Dam	Aerial view of Hoover Dam with the diversion tunnels in use. The power houses are visible as well as the portals to the diversion tunnels. A portion of the Colorado River can be seen.
232	Early stages of construction of Hoover Dam	Handwritten inscription on back of photo: "Hoover Dam -- Down the Colorado River. Dump trucks are on Arizona side and hauling muck to dumping grounds -- no muck can be dumped in the river." The road along...
233	Black Canyon during early stages of dam construction	Handwritten inscription on back of photo: "Building of new suspension bridge downstream from upper portals. Note man riding down on bridge section." Hoisting equipment is visible suspended high above the Colorado River in Black Canyon.
234	Bridge construction near Hoover Dam site	"At lower portal mouths on Arizona side of river. Picture taken from Nevada side." (handwritten inscritpion on back of photo) Shows a temporary suspension bridge and several buildings near the lower portals of Hoover Dam. Cables are...
235	Construction at lower portal of Hoover Dam	Shows construction at the lower portal of Hoover Dam. Part of the bridge is visible as are trucks, buildings, and construction workers. Part of the Colorado River is visible and also the wall of Black Canyon.
236	Aerial view of Hoover Dam and surrounding area	Aerial view of the completed dam showing the downstream face and powerhouses. Lake Mead (reservoir) can be seen as it fills behind the dam. Water is spilling from the outlet works and one of the lower portals to...
237	Aerial view of Hoover Dam and surrounding area	Aerial view of Hoover Dam showing the upstream face, the power houses, one of the portals to a diversion tunnel, and the intake towers. Lake Mead (the reservoir) is filling and a portion of the Colorado River is also...
238	Hoover Dam construction	Panoramic view of Black Canyon and Hoover Dam under construction. Two of the portals to the diversion tunnels are visible. The face of the dam is nearing completion and the concrete pouring forms can be seen. Part...
239	Construction of Hoover Dam	Construction photo showing the Colorado River with temporary suspension bridges, roads along the side of the canyon, trucks, and buildings.
240	Aerial view -- Hoover Dam construction	Aerial view of Hoover Dam, Black Canyon, and the Colordo River during the construction of the dam. Two portals of the diversion tunnels are visible. There are trucks and buildings on the cofferdam. The face of the...
241	Hoover Dam -- retouched photo	Panoramic view of Hoover Dam and area including Fortifiction Hill in background. The photo was taken looking towards the downstream face and shows the power houses, some of the portals to the diversion tunnels, the Colorado River, and Lake...
242	Hoover Dam -- retouched photo	View of Hoover Dam and surrounding area with Fortification Hill in the background. This is a postcard with the following printed on the front: "This is an actual photo of the retouched photograph from which engraving for the...
243	Sedimentation tank at Hoover Dam for Boulder City water supply.	Shows sedimentation tank on the Colorado River at Hoover Dam that supplies the water for Boulder City.
244	Aerial view of Hoover Dam	Aerial view of the completed Hoover Dam and the surrounding area showing the Colorado River below the dam and Lake Mead (the reservoir) above the dam. Water is flowing from the outlet works, and some of the portals to...
245	Aerial view of Hoover Dam	Aerial view of Hoover Dam and the surrounding area showing Lake Mead (the reservoir) and part of the Colorado River. Water is flowing from the outlet works, and the intake towers are visible behind the dam. Shows the...
246	Aerial view of Hoover Dam	Aerial view of Hoover Dam and the surrounding area showing Lake Mead (the reservoir) and part of the Colorado River. Water is flowing from the outlet works, and the intake towers are visible behind the dam. Shows the...
247	Hoover Dam	Aerial view of the Hoover Dam area with a an artist's rendering of the reservoir (Lake Mead) and of the Colorado River superimposed. Fortification Hill is in the background. Roads approaching and crossing the dam are visible.
248	Semi-tropical Nevada : a region of fertile soils and flowing wells	Pamphlet discussing artesian wells and agriculture in Las vegas in the esrly 20th century. Includes illustrations.
249	Endorsement of House Bill 11449 (similar to Senate Bill 3511), Congress of the United States...	Discussion of a Congressional bill to build Boulder Canyon Dam (Hoover Dam) and the All-American Canal to bring water from the Colorado River to the Imperial and Coachella Valleys in southern California. Includes illustrations and map. From the Francis P....
250	Hoover Dam construction, looking upstream	View of the construction of Hoover Dam, looking upstream. Shows concrete forms, various construction buildings, and high scaling equipment. Taken from high above, the Colorado River can be seen above the dam site.