Details for Benchmark: PF0988
N 44° 09.406 W 071° 41.919 (NAD 83)
Coordinates may not be exact. Altitude is UNKNOWN and location is ADJUSTED. (more info)
- In GRAFTON county, NH View Original Datasheet
- CANNON MOUNTAIN LOOKOUT TOWER
- Marker Type:
- lookout tower
- setting not listed - see description
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Documented History (by the NGS)
|01/01/1959 by CGS (FIRST OBSERVED)
|DESCRIBED BY COAST AND GEODETIC SURVEY 1959 (HRL)
STATION IS LOCATED ABOUT 11 MILES SOUTHWEST OF TWIN MOUNTAIN AND ABOUT 5-1/2 MILES SOUTHEAST OF FRANCONIA ON THE HIGHEST POINT OF PROFILE MOUNTAIN. STATION IS ABOUT 35 FEET TALL, CONSTRUCTED OF WOOD AND IS SUPPORTED BY FOUR LEGS.
THE POINT INTERSECTED WAS THE WHITE LIGHT ON THE ROOF OF THE TOWER WHICH IS JUST TO THE EAST OF CENTER OF THE ROOF.
TO REACH STATION FROM THE JUNCTION OF U.S. HIGHWAYS 3 AND 302 AND STATE HIGHWAYS 10 AND 115 IN TWIN MOUNTAIN GO WEST AND SOUTH ON U.S. HIGHWAY 3 FOR 12.0 MILES TO THE AERIAL TRAMWAY AT FRANCONIA NOTCH AND END OF TRUCK TRAVEL. RIDE THE TRAMWAY TO THE TOP AND THEN FOLLOW THE FOOTPATH FOR ABOUT 5 MINUTES TO THE SUMMIT AND STATION AS DESCRIBED.
|01/01/1969 by CGS (GOOD)
|RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1969 (WMJ)
THE STATION RECOVERED IN GOOD CONDITION AS DESCRIBED.
|01/01/1988 by USPSQD (POOR)
|RECOVERY NOTE BY US POWER SQUADRON 1988 (JBD)
MARK RECOVERED IN POOR CONDITION.
|01/01/1989 by USPSQD (GOOD)
|RECOVERY NOTE BY US POWER SQUADRON 1989 (DKS)
RECOVERED IN GOOD CONDITION.
- The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in May 1998.
- The Laplace correction was computed from DEFLEC99 derived deflections.
- The geoid height was determined by GEOID99.