Details for Benchmark: MC1703
N 41° 43.206 W 083° 52.829 (NAD 83)
Coordinates may not be exact. Altitude is GPS OBS and location is ADJUSTED. (more info)
- In FULTON county, OH View Original Datasheet
- BOUNDARY POST 46 MI OH
- Marker Type:
- boundary marker disk
- setting not listed - see description
- May hold, but of type commonly subject to surface motion.
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Documented History (by the NGS)
|1/1/1915 by OHMI (MONUMENTED)
|7/9/1993 by PLSO (GOOD)
|DESCRIBED BY LAND SURV OF OH 1993
THE STATION IS AN OHIO-MICHIGAN BOUNDARY MARKER, SET IN 1915. IT IS LOCATED ABOUT 48 MI (77.2 KM) EAST OF THE NORTHWEST CORNER OF OHIO, 18 MILES (29.0 KM) WEST-NORTHWEST OF TOLEDO, 2.0 MI (3.2 KM) EAST-NORTHEAST OF METAMORA, 23.1 FT (7.0 M) WEST OF A MICHIGAN MONUMENT BOX IN THE CENTERLINE OF FULTON-LUCAS COUNTY LINE ROAD (LENAWEE COUNTY--THOMPSON RD), 55.3 FT (16.9 M) NORTH OF A UTILITY POLE, AND 1.2 FT (0.4 M) NORTHEAST OF A WITNESS POST. IT IS A GRANITE POST, 0.67 FT (20.42 CM) BY 0.83 FT (25.30 CM) SQUARE, PROJECTING 1.7 FT (0.5 M) . THE TOP IS MARKED BY A DRILL HOLE IN A 0.33 FT (10.06 CM) LONG GROOVE. IT IS INSCRIBED ON ALL FOUR SIDES AS FOLLOWS,--OHIO--ON THE SOUTH SIDE,--MICHIGAN--ON THE NORTH SIDE, --POST 46--ON THE WEST SIDE, AND--STATE LINE--ON THE EAST SIDE. THE OHIO-MICHIGAN BOUNDARY REPORT, 1916, BY C. E. SHERMAN, PROVIDES THE FOLLOWING ADDITIONAL INFORMATION. THE GRANITE MONUMENT IS 5.5 FT (1.7 M) LONG WITH THE BASE SET IN A BED OF CONCRETE 2.0 FT (0.6 M) SQUARE AND 1.0 FT (0.3 M) DEEP. TO REACH FROM METAMORA, GO EAST 1.5 MI (2.4 KM) ON SYLVANIA METAMORA ROAD, TURN LEFT AND GO 0.54 MI (0.87 KM) NORTH ON FULTON-LUCAS COUNTY LINE ROAD TO THE STATION ON THE RIGHT.
- The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in April 1998.
- The orthometric height was determined by GPS observations and a high-resolution geoid model.
- The X, Y, and Z were computed from the position and the ellipsoidal ht.
- The Laplace correction was computed from DEFLEC99 derived deflections.
- The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
- The geoid height was determined by GEOID99.