; Whereas, after the review was announced— (1) numerous organizations and residents submitted letters of support for the San Gabriel Mountains National Monument, including the County of Los Angeles Board of Supervisors, San Gabriel Valley Council of Governments, City of El Monte, City of Glendora, San Gabriel Valley Economic Partnership, and City of Baldwin Park; and (2) the San Gabriel Mountains Community Collaborative submitted a letter stating that the San Gabriel Mountains National Monument was properly designated under the Antiquities Act of 1906 ( 54 U.S.C. 320301 et seq.); and Whereas only Congress has the authority to change the boundary of the San Gabriel Mountains National Monument: Now, therefore, be it