If Big Bend is the most forgotten National Park, then the Mesa de Anguila is the forgotten corner of it. This sprawling area of the park is the most remote and least-hiked area. Traditionally, a long hike from Lajitas, over 60 miles from Park Headquarters, from a trailhead that is not accessible by car, only by shuttle from the Lajitas Resort, is the customary access onto the Mesa.
For the EXTREMELY ADEPT scrambler equipped correctly, access onto the Mesa can be gained via Bruja Canyon, much closer to the park, and much closer to noteworthy sights on the mesa. This route is a TECHNICAL CLIMB and, while true rock climbers will find it exceeding simply, those not technically skilled should be belayed. The climb is IMPOSSIBLE with a backpack. Packs must be hauled up sharp limestone studded with cacti.
First, hike to Bruja Canyon using the instructions in the Bruja Canyon hike section. DO NOT enter the canyon. Instead, climb/scramble to the top of the cactus-studded white hill to the right of the canyon entrance. Follow the picture for the specific route.
The first section of the climb is the most challenging, forcing you to climb up through prickly sotol and over an overhanging rock. A bolt has been secured in the top of the rock to belay inexperienced climbers on this portion.
The next pitch is the longest, about 20 feet high, and is very simple, up to a crack, then traverse left to avoid cactus and up with plenty of handholds and footholds.
The last pitches are even shorter and easier, though vertigo may claim those not used to climbing.
The climb is not hard. But a panic or a slip can prove fatal. Therefore it is CRITICAL to belay anyone that is not an experienced technical climber.
Packs will have to be hauled, perhaps one pitch at a time. This will prove far more challenging than the climb itself.
Once you reach the top of the climb, no higher than 80 feet in total, a steep trough gives access to the ridgetop within 10 minutes. Then you will be on a ledge high above Bruja Canyon. Follow the ledge upcanyon and into Upper Bruja Canyon, which will dump you out onto the mesa at Tinaja Susan. The technical part is over, but vast wilderness is before you, presenting its own unique set of challenges.
I've posted this description because there is a TOTAL LACK of information about the Bruja Canyon climb. The Park Service website only states it is "extremely difficult and not recommended" and Park Rangers will be of even less help, even if they have made the climb.
Again, I must stress that this route only be taken by COMPETENT parties equipped with rope, harnesses, and biners. Only hike there in winter. Take a gallon of water per person per day, and let the park service know you'll be up there.
http://www.nps.gov/bibe/mesadeanguila.htm
VERY HIGHLY RECOMMENDED for the competent adventurer! NOT RECOMMENDED for the casual hiker.