unappropriated public lands
(1) The term “unappropriated public lands” as used in this section shall include, without otherwise affecting the meaning thereof, lands withdrawn for coal, phosphate, nitrate, potash, oil, gas, asphaltic minerals, oil shale, sodium, and sulphur, but otherwise subject to appropriation, location, selection, entry, or purchase under the nonmineral laws of the United States; lands withdrawn by Executive Order Numbered 5327, of April 15, 1930 , if otherwise available for selection; and the retained or reserved interest of the United States in lands which have been disposed of with a reservation to the United States of all minerals or any specified mineral or minerals.