LOW HILL RM 1 Coordinates: N 31.9912° W 112.75085° Location: Lukeville Quad Arizona Pima County Elevation: Unknown Type: Reference Mark Disk Setting: Boulder Year Established: 1936 Established By: NGS Status: Recovered Condition: Good as of May 19, 2007 View larger map View Google map For more information, see: LOW HILL NGS Reference Mark Disk LOW HILL RM 1 Eyelevel view of the disk set into a basalt boulder. Looking NE toward the Diablo Mountains. For more information, see: LOW HILL