Little Leaf Ratany Red Eye Prickly Pear Rock Nettle Silver Leaf Nightshade Brown Flowering Cactus Brown Flower in Bloom Wax Plant Carolina Bristle Mallow Brown Bark with Spikes Approaching Nugent Mountain Nugent Mountain Approaching Rio Grande Overlook Path to Overlook A Delicate Pink Aster River Hidden Behind Trees Ahead Guapilla - Hechtia Texensis Wright Prairie Clover - Dalea Wright Parking Area & Tunnel Below