Riddled
This week's Saturday Timewatch features a Witness Post erected by the US National Geodetic Survey in 1978.
A Witness Post indicates to surveyors that a Survey Marker is very close by, but possibly on private land. Indeed we could not find the actual marker.
However a search of the National Geodetic Survey Data reveals height marker AW2189 is situated -
"NORTHWEST OF A POLE WITH 2 GUY WIRES AND TO A POWERLINE SPUR, 30 FEET NORTH OF THE CENTER-
LINE OF MORRISON ROAD, 17 FEET WEST OF THE CENTER OF TWO LARGE METAL PIPE GATES, AND 1 FOOT SOUTH OF THE NORTHERLY RIGHT OF WAY FENCE. DISK IS LEVEL WITH THE GROUND, ACCESS TO WHICH IS HAD THROUGH A 4 INCH PLASTIC SCREW PLUG".
The height above sea level is revealed as 57.88 metres / 189.9'
It seems the marker to which this Witness Post was erected may have been situated because another marker AW2213 placed nearby on an unknown date but known to be 'good' in 1954, couldn't be found in 1978. Ironically both AW2189 and AW2213 were refound in good condition on October 14th 2004!
Flickr Explore # 74 on Monday, April 22, 2019.
Riddled
This week's Saturday Timewatch features a Witness Post erected by the US National Geodetic Survey in 1978.
A Witness Post indicates to surveyors that a Survey Marker is very close by, but possibly on private land. Indeed we could not find the actual marker.
However a search of the National Geodetic Survey Data reveals height marker AW2189 is situated -
"NORTHWEST OF A POLE WITH 2 GUY WIRES AND TO A POWERLINE SPUR, 30 FEET NORTH OF THE CENTER-
LINE OF MORRISON ROAD, 17 FEET WEST OF THE CENTER OF TWO LARGE METAL PIPE GATES, AND 1 FOOT SOUTH OF THE NORTHERLY RIGHT OF WAY FENCE. DISK IS LEVEL WITH THE GROUND, ACCESS TO WHICH IS HAD THROUGH A 4 INCH PLASTIC SCREW PLUG".
The height above sea level is revealed as 57.88 metres / 189.9'
It seems the marker to which this Witness Post was erected may have been situated because another marker AW2213 placed nearby on an unknown date but known to be 'good' in 1954, couldn't be found in 1978. Ironically both AW2189 and AW2213 were refound in good condition on October 14th 2004!
Flickr Explore # 74 on Monday, April 22, 2019.