BLUNDERS

[kayakbird]

BLUNDERS OR TYPO'S?

 

Didn't notice the descrepancies between call distances and published elevations

while I was digging through several inches of snow just before dark on the next

to last day of my two month road trip.

 

The published distance from Etna to D 67 varies from 7.6 meters to 8.775 meters.

 

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AA2119 DESIGNATION - ETNA RESET

AA2119* NAD 83(2007)- 43 02 51.87067(N) 111 00 42.43884(W) ADJUSTED

AA2119* NAVD 88 - 1772.2 (meters) 5814. (feet) GPS OBS

AA2119 HISTORY - 1993 MONUMENTED WYDT

AA2119'NEW SURFACE MARK DIRECTLY OVER THE SUBSURFACE DISK IN 1993 AND

AA2119'PIPE UNDER A FIELD ROAD, 8.5 M (27.9 FT) SOUTH OF BENCH MARK D 67,

 

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OX0679 DESIGNATION - ETNA

OX0679 HISTORY - 1946 MONUMENTED CGS

OX0679* NAD 83(1992)- 43 02 51.86524(N) 111 00 42.42858(W) ADJUSTED

OX0679* NAVD 88 - 1774.6 (meters) 5822. (feet) VERTCON

OX0679| OX0336 D 67

8.775 METERS 00519

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OX0336 DESIGNATION - D 67

OX0336 HISTORY - 1934 MONUMENTED CGS

OX0336* NAD 83(1986)- 43 02 52. (N) 111 00 43. (W) SCALED

OX0336* NAVD 88 - 1772.191 (meters) 5814.26 (feet) ADJUSTED

OX0336'NORTHERLY 25 FEET (7.6 M) OF ETNA TRIANGULATION STATION.

 

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I don't think that slope distance would account for it.

 

 

OX0336 SSW

 

 

AA2119 NNE

 

And is there usually that much difference between ADJUSTED and VERTCON elevations? MEL