Big Bend National Park in far West Texas has the darkest measured skies of any national park in the lower 48 states — certified Gold-tier by the International Dark-Sky Association with Bortle 1–2 conditions. The remoteness is extreme: the nearest significant towns are hours away, and the Chihuahuan Desert air is exceptionally dry and clear. The Milky Way is breathtaking, casting shadows on moonless nights, and the zodiacal light and gegenschein are routinely visible. At 29.3°N, the southern sky is well presented, making Big Bend a destination for serious observers and astrophotographers.