| John D. Leshy - 1987 - 556 pages
...section explicitly amending the Mining Law to require the secretary, in managing the public lands, to "take any action necessary to prevent unnecessary or undue degradation of the lands."23 Obviously, such forbidden degradation might result from activities on invalid mining claims.... | |
| 1991 - 316 pages
...and degree in which the same was being conducted on the date of approval of this Act: Provided, That, in managing the public lands the Secretary shall by regulation or otherwise take any action required to prevent unnecessary or undue degradation of the lands and their resources or to afford... | |
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