On 3 March, the passage of the Forest Reserve Act enabled the U.S. president to close public forest lands to settlement so that he could establish national parks.
Citation:
Richert, Lucas Paul. "Forest Reserve Act".
The Literary Encyclopedia. First published 01 February 2009
[http://www.litencyc.com/php/stopics.php?rec=true&UID=5984, accessed 24 May 2013.]