section 404b of this titleThe Secretary of the Interior is authorized, in his discretion, to exclude the Great Onyx Cave and the Crystal Cave, or either of them, from the maximum boundaries of the said park, and the area required for general development of the said park by , is modified accordingly.
Aug. 28, 1937, ch. 873, § 250 Stat. 871(, .)
Statutory Notes and Related Subsidiaries
Eventual Acquisition of Great Onyx and Crystal Caves
section 404b–2 of this titleEventual acquisition of Great Onyx and Crystal Caves, see .