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Details for Benchmark: TR1852

N 48° 59.912 W 122° 42.282 (NAD 83)

Altitude: 0

Coordinates may not be exact. Altitude is UNKNOWN and location is ADJUSTED. (more info)

Location:
In WHATCOM county, WA View Original Datasheet
Designation:
AIRWAY BEACON 10
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Must Read!

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I am not sure what I found. At first I was excited because I thought I found the remains of a large concrete arrow (see photos of an east-west concrete strip that could be an arrow with no head). However, after picture taking, I spoke with a neighbor across the street (who had lived there for 20 years) and he said he thought that was the foundation for an old chicken coop that used to be there… (the sound you just heard was my bubble bursting).

I guess I don’t even know if the station IS supposed to be a concrete arrow – it does not specifically describe the station in the description.

So – I either found an awesome portion of an old rare airway beacon or I found the underlayment for chicken poop.

(Note, in 2007 legacypac mentioned a concrete arrow, however, Google Earth images back to 1998 only show a rectangular concrete strip. From Google Earth, the concrete strip I photographed was about 120 feet x 25 feet - aligned east-west.)

[Photos:]
photoA concrete strip near TR1852.
Looking north-northeast. Could just be a building foundation.
photoConcrete strip near TR1852 location.
Looking east-northeast.
photoConcrete strip - Looking east
photoThe only tower in the area.
This is about 1100 feet East by North from the TR1852 coordinates and appears to be an antenna tower rather than a beacon tower. It also looks newer than 1940 vintage.

found this one today quite easily.

FTF on this Airway Beacon. There is an interesting thread about airway beacons in the forums. This one is on private property. It is visable from the road and on Google Earth. A giant concrete arrow.

[This entry was edited by legacypac on Monday, July 02, 2007 at 1:31:27 AM.]

[This entry was edited by legacypac on Monday, July 02, 2007 at 1:35:57 AM.]

Documented History (by the NGS)

01/01/1941 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1941 (JCS) THIS BEACON IS LOCATED NEAR THE CANADIAN BORDER, ON THE N SIDE OF THE HIGHWAY CONNECTING BLAINE AND SUMAS, WASHINGTON. IT IS APPROXIMATELY 2 MILES E OF BLAINE. AN INTERSECTION STATION.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in December 1991.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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