The Bureau of Land Management operates 19 national monuments across nine Western states , including Arizona , California , Colorado , Idaho , Montana , New Mexico , Oregon , Utah and Washington . the Organ Mountains-Desert Peaks National Monument will include 600,000 acres . Cesar : Designation in New Mexico could generate $ 7.4 million in economic activity . President Barack established the Cesar E. Chavez National Monument in 2012 .
the Organ Mountains-Desert Peaks National Monument will include 600,000 acres . Cesar : Designation in New Mexico could generate $ 7.4 million in economic activity . President Barack established the Cesar E. Chavez National Monument in 2012 .