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Details for Benchmark: ME2933

N 41° 31.982 W 087° 42.291 (NAD 83)

Altitude: 0

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

Location:
In COOK county, IL View Original Datasheet
Designation:
RICH TWP MICROWAVE KSA 46 LT
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Must Read!

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Saw this one with Razor1965

In route to a geocache when we spotted this one.

We saw this one enroute from .75 miles away. It's crazy, in living here all my life this is the first time that I can ever remember seeing this structure. I got a good picture that I'll upload later.

Drove up and took a picture while on our way to another cache.

This one always looked strange in an ancient kind of way.

I'm gonna mark this as found because the tower was fenced off and there is no access to it. See pics.

[Photos:]
photoIM003124.JPG
photoIM003125.JPG

Documented History (by the NGS)

01/01/1952 by CGS (FIRST OBSERVED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1952 (LWS) STATION IS LOCATED ABOUT 2 MILES WEST OF OLYMPIA FIELDS, 2 MILES SOUTHWEST OF FLOSSMOOR AND 0.4 MILE WEST OF U.S. HIGHWAY 54, IN RICH TOWNSHIP. IT IS A 30 FOOT SQUARE CONCRETE BUILDING, 197 FEET HIGH, OWNED BY THE AMERICAN TELEGRAPH AND TELEPHONE COMPANY AND USED FOR TELEVISION RELAY PURPOSES. THERE ARE 4 LARGE CONICAL SHAPED RELAYS LOCATED ATOP THE BUILDING. THE POINT OBSERVED ON WAS A FLASHING RED LIGHT LOCATED ON A STAFF AT THE CENTER OF THE TOP OF THE BUILDING. TO REACH THE STATION FROM THE JUNCTION OF U.S. HIGHWAYS 54 AND 30, WHICH IS 3 MILES WEST OF CHICAGO HEIGHTS, GO NORTH ON HIGHWAY 54 FOR 2 MILES TO A SIDE ROAD LEFT, TURN LEFT AND GO WEST ON GRAVEL ROAD FOR 0.4 MILE TO STATION AS DESCRIBED.
01/01/1956 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1956 (WNM) THE STATION WAS RECOVERED IN GOOD CONDITION. THE OLD DESCRIPTION IS ADEQUATE.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in October 1999.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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