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Details for Benchmark: KN0030

N 39° 20.317 W 110° 23.100 (NAD 83)

Altitude: 4857.07

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

Location:
In EMERY county, UT View Original Datasheet
Designation:
4851
Marker Type:
pipe cap
Setting:
set into the top of a metal pipe driven into the ground
Stability:
Mark of questionable or unknown stability.

Must Read!

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w/KayakBird. He posted pix. IBC in Utah desert. GO FIGURE!!

With Okie'sKid. Believed the pictures, but wanted to see the 1910 sequence stamp on it.

[Photos:]
photoKN0030 USGS 4851
THIS IBC CAP IS A BIT OUT OF ITS TERRITORY, BUT IS # 46 IN THIS STRING.
photoKN0030 NNW

I also went looking for this one, due to the cap description and age. I'm not sure I believe that it is a canadian boundary cap. I will have to do more research.

It is in good condition and there is no sign of the old telephone booth. It hid for a bit in the brush, but is approximately 8' from the old power pole.

A very interesting find.

[Photos:]
photo4851 - Emery County, UT
photo4851 - Emery County, UT
photo4851 - Emery County, UT
photo4851 - Emery County, UT

I went looking for this one simply due to the description: A UNITED STATES AND CANADA BOUNDARY SURVEY STANDARD CAP. For being in the middle of Utah, that's a pretty interesting find.

[Photos:]
photoUS-Canadian Border Marker--in Utah!
photoKN0030 - Looking NE at Bookcliff Mountains, UT

Documented History (by the NGS)

01/01/1910 by USGS (MONUMENTED)
01/01/1934 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1934 6.0 MI NW FROM WOODSIDE. 6.0 MILES NORTHWEST ALONG THE DENVER AND RIO GRANDE WESTERN RAILROAD FROM WOODSIDE, EMERY COUNTY, AT GRASSY SIDING, 0.2 MILE SOUTH OF MILEPOST 587, 8 FEET SOUTH OF A TELEPHONE POLE, AT THE EAST EDGE OF THE RIGHT-OF-WAY, AND BEHIND THE FOUNDATION OF A DISMANTLED TELEPHONE BOOTH. A UNITED STATES AND CANADA BOUNDARY SURVEY STANDARD CAP, STAMPED 4851 1910 46 AND RIVETED ON THE TOP OF A 3-1/2-INCH IRON PIPE. NOTE-- THIS TYPE OF CAP HAD APPARENTLY BEEN USED INSTEAD OF A STANDARD U.S.G.S. CAP.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (G = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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