43 CFR §3201.11

1. (a)Lands where the Secretary has determined that issuing the lease would cause unnecessary or undue degradation of public lands and resources;
2. (b)Lands contained within a unit of the National Park System, or otherwise administered by the National Park Service;
3. (c)Lands within a National Recreation Area;
4. (d)Lands where the Secretary determines after notice and comment that geothermal operations, including exploration, development or utilization of lands, are reasonably likely to result in a significant adverse effect on a significant thermal feature within a unit of the National Park System;
5. (e)Fish hatcheries or wildlife management areas administered by the Secretary;
6. (f)Indian trust or restricted lands within or outside the boundaries of Indian reservations;
7. (g)The Island Park Geothermal Area; and
8. (h)Lands where Section 43 of the Mineral Leasing Act (30 U.S.C. 226-3) prohibits geothermal leasing, including:
   1. (1)Wilderness areas or wilderness study areas administered by BLM or other surface management agencies;
   2. (2)Lands designated by Congress as wilderness study areas, except where the statute designating the study area specifically allows leasing to continue; and
   3. (3)Lands within areas allocated for wilderness or further planning in Executive Communication 1504, Ninety-Sixth Congress (House Document 96-119), unless such lands are allocated to uses other than wilderness by a land and resource management plan or are released to uses other than wilderness by an Act of Congress.