The Act of July 17, 1914 permitted agricultural entry or purchase of lands withdrawn for phosphate, nitrate, potash, oil, gas or asphalt with a reservation of these minerals to the United States.
The Act of July 20, 1956 permitted the disposition of these minerals discovered and located prior to the Mineral Leasing Act.
The Stockraising Homestead Act of December 29, 1916 allowed entry of 320 acres rather than the 160 acre preemption homestead, but reserved the minerals to the United States, the minerals being subject to disposal under the general mining and mineral leasing laws. The surface owner is protected by the Act, and a bond must be posted with the Bureau of Land Management unless satisfactory arrangements can be made between the mineral and surface owner (43 C.F.R. 3814).
Lands patented under the Color of Title Act (43 U.S.C. 1068), by exchange under the Taylor Grazing Act (43 U.S.C. 315g) and by Forest Exchanges (16 U.S.C. 485) with mineral reservation to the United States, are subject to appropriation under the mining and mineral leasing laws.
The Atomic Energy Act of August 1, 1946 reserved fissionable source material, uranium and thorium, to the United States, but these provisions have since been rescinded and such minerals are locatable under the mining laws. Mining claims for fissionable source materials could be located on lands known to be valuable for coal under the Act of August 11, 1955 (30 U.S.C. 541 through 541i) which expired August 11, 1975.
1–24 Areas Subject to Special Mining Laws:
O & C Lands: The Act of April 8, 1948 (62 Stat. 162) reopened the revested Oregon and California Railroad and Reconveyed Coos Bay Wagon Road Grant Lands to exploration, location, entry and disposition under the United States Mining Laws, but imposed additional requirements regarding the filing of location certificates, affidavits of annual labor, use of timber, etc. See 43 C.F.R. 3821 for details.
Alaska Public Sale Act of August 30, 1949 (48 U.S.C. 364a–364e) segregated for classification and sale certain lands, but reserved the minerals for disposition under applicable law. Provided compensation to the surface owner for damage. See 43 C.F.R. 3822.
National Forest Wilderness Areas are open to prospecting and mining under existing laws until midnight, December 31, 1983 by which time they shall be closed except for valid existing rights. Patents will be for mineral only with title to the surface reserved to the United States, subject to certain use to facilitate mining. See 43 C.F.R. 3823.
City of Prescott, Arizona Watershed: The Act of January 19, 1933 (16 U.S.C. 482a) restricted future mining locations to minerals only with restricted use of the surface. See C.F.R. 3824.