Burro Spring Bridge, San Juan County, New Mexico
Photo by Larry Beck
NABSQNO 13S-252970-4077035. Burro Spring Bridge is a waterfall natural bridge eroded through San Jose Formation sandstone. It is located about 13 miles east of Aztec, San Juan County, New Mexico. Access is via a complex of mineral exploration roads (dirt) stemming north from highway 173. The arch has a span of about 17 feet.