( http://www.backpacker.com/skills/fitness/train-smarter/ )
The longest planned hike will be about 10.5 miles to Emory Peak (round trip). This trail has a 2487 ft rise in elevation and is considered strenuous. Our trip to Caprock Canyons State Park had a 500 ft rise and with 60 lb backpacks that was pretty tough. Think of climbing the stairs of a 50 story building with a loaded backpack. Yep! That was fun.
( http://www.texasavidoutdoors.com/trips/caprock-canyons-tao-trip )
We've never been to Big Bend before, so we are naturally quite excited about this trip. The attached image shows our custom google map of the Chisos Mountains and surrounding areas (the actual size of this map is 4 ft by 7 ft and if you were at the Fall Expo, you probably saw it there). We are planning to do almost all of our backpacking in this section of the park.
If you've been to Big Bend before and have any tips or tricks, please comment below!