No extension or establishment of national parks in Wyoming may be undertaken except by express authorization of Congress.
(
| Revised Section | Source (U.S. Code) | Source (Statutes at Large) | 
|---|---|---|
| 104907 | 16 U.S.C. 451a. | Sept. 14, 1950, ch. 950, §1 (proviso relating to national parks), | 
The word "further" is omitted as obsolete.