Franklin Roosevelt actually said...
it is ordered that all of the vacant, unreserved and unappropriated public land in the States of Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Utah and Wyoming be, and it hereby is, temporarily withdrawn from settlement, location, sale or entry, and reserved for classification, and pending determination of the most useful purpose to which such land may be put in consideration of the provisions of said Act of June 28, 1934, and for conservation and development of natural resources.
11/25/1934