Where the Regional Corporation is precluded from receiving the subsurface estate in lands selected and conveyed pursuant to paragraph (1), (2), (3), or (5), or the retained mineral estate, if any, pursuant to paragraph (6), it may select the subsurface estate in an equal acreage from other lands withdrawn for such selection by the Secretary, or, as to Cook Inlet Region, Incorporated, from those areas designated for in lieu selection in paragraph I.B.(2) of the document identified in
[section 12(b) of Public Law 94–204]. Selections made under this paragraph shall be contiguous and in reasonably compact tracts except as separated by unavailable lands, and shall be in whole sections, except where the remaining entitlement is less than six hundred and forty acres. The Secretary is authorized to withdraw, up to two times the Corporation’s entitlement, from vacant, unappropriated, and unreserved public lands, including lands solely withdrawn pursuant to
section 1616(d)(1) of this title, and the Regional Corporation shall select such entitlement of subsurface estate from such withdrawn lands within ninety days of receipt of notification from the Secretary.