Welcome, Lubbockhiker. There are at least a couple of backpackers on these boards that travel to West Tx to our two National Parks. I've only been to Big Bend once and was surprised at the forested mountains of the Chisos. I was only expecting a more or less desert park.
Sounds like you've already made strides in getting the weight off. Congrats!
And as far as your smoking cessation, you're on the right path. Keep it going.