Risk and reward flirt on these 100 miles through brutal Big Bend beauty. Fortress cliffs, desert water, hints of history, and the Chisos Mountains sky island all compete for glory. Texas’ largest state park and national park partner to offer the longest backpacking trip in Texas. Each vista is punctuated by difficult navigation over tough terrain, with long stretches between water. Be real with your abilities, don't die. For the experienced backpacker, adventure awaits.