Big Bend National Park Wall Calendar: Big Bend National Park is named for a large bend in the R&#205o Grande, and spans over a hundred miles along the Texas-Mexico border. Ranging from 2,000 to almost 8,000 feet in elevation, the park offers stunning desert, canyon, and mountain vistas. As the river twists through the park, its glorious and bountiful beauty will captivate you. Take a journey through magnificent Big Bend National Park with this exquisite wall calendar.