Construction of Mount Rushmore Construction of Mount Rushmore The construction of Mount Rushmore National Memorial took 14 years, from 1927 to 1941. Doane Robinson of the South Dakota Historical Society wanted a monument to be built in South Dakota in order to help the economy of the state by attracting tourism. In 1923, he proposed that this monument should be built from the granite cliffs in the Black Hills of South Dakota. Senator Peter Norbeck of South Dakota approved the proposal, and federal funding helped the project. Robinson asked architect and sculptor Gutzon Borglum to sculpt and design the monument. Borglum decided to use
Corpus Christi Bay semi-arid and is used for ranching and other agricultural purposes. The bay itself is considered subtropical, and was described by Gutzon Borglum as "the most beautiful bay on the Texas coast." On average, the system is deep, and covers approximately . It is the fourth largest estuarine system in Texas behind Galveston Bay, Laguna Madre and Matagorda Bay. The two main extensions are: Nueces Bay, which extends west to the mouth of the Nueces River, and Oso Bay, which extends south to the mouth of Oso Creek. Every second, approximately of water flows into the bay. The exchange with the