Boundary Enlargement of the San Gabriel Mountains National Monument

( printed page 40361) Proclamation 10746 of May 2, 2024 Boundary Enlargement of the San Gabriel Mountains National Monument A Proclamation Through Proclamation 9194 of October 10, 2014, President Obama established the San Gabriel Mountains National Monument (monument) to protect the rich cultural history, striking geologic features, and vibrant ecological diversity contained within a portion of the Angeles National Forest. Situated in the mountains north of Los Angeles, the monument is a verdant oasis that contains abundant and distinctive flora and fauna; unique geology; and evidence of centuries of occupation and use by Tribal Nations and Indigenous peoples, Spanish missionaries and colonists, Mexican rancheros, and Euro-American settlers and prospectors. In addition to protecting these and other objects of historic and scientific interest, the monument's pristine natural lands and proximity to Los Angeles make it a unique place of rejuvenation and recreation for the people of the ever-changing urban and suburban communities of greater Los Angeles. Expanding the monument to include the expanse of the Angeles National Forest that stretches south and west from the current boundary to the National Forest boundary near foothill communities of Los Angeles will protect additional objects of scientific and historic interest. This expansion area contains evidence of thousands of years of use and occupation by Indigenous peoples, as well as evidence of more recent human uses, including the ruins of grand recreation resorts and of a missile unit built during the Cold War. A diversity of animals, birds, reptiles, and other wildlife, including numerous threatened and endangered species, live among the unique geological and ecological features of the expansion area, including its unusual canyons, chaparral, and coastal sage scrub lands, and use the area to travel from the lowlands in the south to the soaring mountains in the north. Since time immemorial, the rich landscape wit…