CHER RM 1 Coordinates: N 32.031033° W 112.7992° Location: Arizona Pima County Tillotson Peak Quad Elevation: Unknown Type: Reference Mark Disk Setting: Round Concrete Monument Year Established: 1977 Established By: AZDOT Status: Recovered Condition: Good as of May 19, 2007 View larger map View Google map For more information, see: CHER ADOT Reference Mark Disk CHER RM 1 Eyelevel view of the reference mark disk in a round concrete monument. Looking SE toward Route 85. For more information, see: CHER