Oso Ridge, Site 61, Fire Lookout and LA-A Airway Beacon Light Tower, New Mexico, 1948 Posted: December 16, 2018 Submitted by Steve OwenOso Ridge Fire Lookout and LA-A Airway Beacon Light Tower, Site 61, New Mexico, 1948. 1948 Submitted by Steve OwenOso Ridge Fire Lookout and LA-A Airway Beacon Light Tower Intermediate, Site 61, New Mexico, 1944.Coordinates are: 35° 2’17.30″N 108° 6’59.70″W Wintertime, date unknown