On the recordJuly 11, 1909
Now, Therefore, I, William Howard Taft, President of the United States of America, by virtue of the power in me vested by section two of the Act of Congress, approved June eighth, nineteen hundred and six, entitled, 'An Act for the Preservation of American Antiquities,' do proclaim that there are hereby reserved from all forms of appropriation under the public land laws, subject to all prior valid adverse claims, and set apart as a National Monument, all the tracts of land in the State of Oregon shown as the Oregon Caves National Monument on the diagram forming a part hereof.
Source
presidency.ucsb.edu
