LOW HILL RM 2 Coordinates: N 31.991117° W 112.75095° Location: Arizona Pima County Lukeville Quad Elevation: Unknown Type: Reference Mark Disk Setting: Bedrock 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 2 Eyelevel view of the reference mark disk set into a basalt boulder. Looking W toward the azimuth mark, the road, and mountains in the background. For more information, see: LOW HILL