Spilling Thought: The Sonoran Desert #NationalMonument in #Arizona contains more than 487,000 acres of #SonoranDesert landscape -- the most biologically diverse of the North American deserts. One of the most striking aspects of the monument is the extensive saguaro cactus forest. Native to the Sonoran Desert, the saguaro can grow to 40-60 feet and live up to 150 years each. As a forest, the saguaro make for out-of-this world hikes and breathtaking night sky views. Pictured here is an iconic Southwestern view of saguaro in the moonlight by Bob Wick, BLM. Be sure to follow @mypubliclands and #conservationlands15 for more stunning photos of National Conservation Lands for your #bucketlist. by usinterior