President Biden named Castner Range in Texas and Avi Kwa Ame, also known as Spirit Mountain, in Nevada as national monuments at the White House Conservation in Action Summit on Tuesday, Mar. 21, 2023. Read "Biden designates 2 new national monuments, Spirit Mountain and Castner Range" on Yahoo News: https://yhoo.it/40nvfI2 Follow us on: Facebook: https://www.facebook.com/yahoonews Instagram: https://www.instagram.com/yahoonews/ Twitter: https://twitter.com/yahoonews TikTok: https://www.tiktok.com/@yahoonews Website: https://news.yahoo.com/