SHACK RM 2 Coordinates: N 31.865527° W 112.755527° Location: Arizona Pima County South of Lukeville Quad Elevation: Unknown Type: Reference Mark Disk Setting: Rock Outcrop Year Established: 1936 Established By: NGS Status: Recovered Condition: Good as of March 27, 2019 View larger map View Google map For more information, see: SHACK NGS Reference Mark Disk SHACK RM 2 Eyelevel view of the reference mark on the outcrop Looking SE toward the station (near the dead saguaro) For more information, see: SHACK
