Six-Years Ago (19-September-2006) — Texas Gone to See America 2006 Driving Tour. Day 21: Big Bend National Park, Texas. Abandoned Post Office at Hot Springs in Big Bend National Park. Old Post Office at Big Bend National Park. Image taken with a Nikon D200 camera and 18-70 mm kit lens (ISO 100, 18 mm, f/9, 1/320 sec). (David J. Mathre) Check out previous images of the post office in 1930’s and 1945.