Burro Mesa Pouroff Window in Big Bend National Park, Texas
Photo by Jay Wilbur
NABSQNO 13R-655709-3235152. Burro Mesa Pouroff Window is a propped natural arch eroded through rhyolite. It is located on the Burro Mesa Pouroff trail in Big Bend National Park, Brewster County, Texas. Vreeland included this natural arch in his catalog as number 17-32 and reported a span of 10 feet.