Big Bend National Park has several hiking trails. Window View Trail, Grapevine Hills Trail to Balanced Rock, Mule Ear Spring Trail, Lower Burro Mesa Pour-off Trail, Rio Grande Village Nature Trail, Santa Elena Canyon Trail, Boquillas Canyon Trail, Lost Mine Trail, Emory Peak Trail, Emory Peak via South Rim Trail, Boot Springs Trail.
Here are some pictures:
Visit the park, get lodging info and directions.
NP Foundation has pics, itineraries, and more info.
