and who was it built by?
UNANSWERABLE
who was president when the hoover dam was built Franklin D. Roosevelt. where is this dam located? Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. did anyone try to find resources on this dam? An initial attempt at diverting the Colorado river for irrigation purposes occurred in the late 1890s, when land speculator William Beatty built the Alamo Canal just north of the Mexican border; the canal dipped into Mexico before running to a desolate area Beatty named the Imperial Valley. how the climate like in this valley? It often has summer temperatures well over , but from late October until mid-April the temperature is relatively mild and can sometimes even reach low temperatures not expected in a desert. is there any fort situated here? Yes, Fort Yuma
Captain Samuel P. Heintzelman UNANSWERABLE It was established on October 2, 1849, by 1st Lieutenant Cave J. Couts.
Fort Yuma Fort Yuma
Pre-Civil War Pre-Civil War
Established by Captain Samuel P. Heintzelman, 2nd Infantry Regiment, the fort was originally named 'Camp Independence.' It was established on October 2, 1849, by 1st Lieutenant Cave J. Couts, 1st Dragoons, for the boundary survey party led by 2nd Lieutenant Amiel W. Whipple, Corps of Topographical Engineers.
wiki:1881894
Imperial Valley [SEP] Fort Yuma
Fort Yuma is located on the banks of the Colorado River in Winterhaven, California. First established after the end of the Mexican–American War in 1848, it was originally located in the bottoms near the Colorado River, less than below the mouth of the Gila River. It was to defend the newly settled community of Yuma, Arizona on the other side of the Colorado River and the nearby Mexican border. In March 1851 the post was moved to a small elevation on the Colorado's west bank, opposite the present city of Yuma, Arizona, on the site of the former Mission Puerto de Purísima Concepción.