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Details for Benchmark: HO0147

N 37° 13.550 W 112° 53.367 (NAD 83)

Altitude: 5550

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

Location:
In KANE county, UT View Original Datasheet
Designation:
P 57
Marker Type:
bench mark disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

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grabbed it on my way west..

Recovered in good condition, as described. GPS (HH-2) co-ordinates N37° 13.563', W112° 53.382'.

[Photos:]
photoP 57 / HO0147
A close-up of the mark, with the GPSr.
photoP 57 / HO0147
A close-up of the mark alone.
photoP 57 / HO0147
An eye-level view of the mark.
photoP 57 / HO0147
A wide view of the general area, looking north.

First one in Kane County

[Photos:]
photoHO0147 P 57 1934
photoHO0147 E

Arrived in Zion late in the afternoon, seeing the sights and looking for a few benchmarks.

[Photos:]
photoHO0147 marker
N 37° 13.564 W 112° 53.384

Always fun to find older benchmarks. This one is now 72 years old, and in great shape. Nice day in Zion NP.

--Olystats02, Enchilada Girl & MountainGoat

[Photos:]
photoMark P-57, Zion National Park, Utah
Mark is located in the east side of Zion, along the Zion-Mt. Carmel Hiway, Kane County, Utah.
photoView west from mark
The curve in the hiway west of mark P-57, Zion National Park, Utah.
photoView north from mark P-57
Mark P-57 is visible at bottom center. Zion Nat'l Park, Utah.

Right where the description said it would be. Recovered in good condition.

[Photos:]
photoP 57 in Eastern Zion Nat'l Park
photoP 57 looking westerly

11/23/2003: Found in good condition. WGS84: N37*13.564' x W112*53.381'

[Photos:]
photoHO0147
photoHO0147_Site

Tough find, but right under our noses!

Documented History (by the NGS)

01/01/1934 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1934 14.6 MI NE FROM ROCKVILLE. IN KANE COUNTY, 14.6 MILES NORTHEAST ALONG STATE HIGHWAY 15 FROM ROCKVILLE, WASHINGTON COUNTY, 60 FEET SOUTH OF A ROW OF POLES CARRYING ONE WIRE, 45 FEET SOUTH OF A DRY WASH, 30 FEET NORTH OF THE CENTERLINE OF THE HIGHWAY, AND IN THE TOP OF A RED SANDSTONE OUTCROP. A STANDARD DISK, STAMPED P 57 1934.
01/01/1983 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1983 RECOVERED IN GOOD CONDITION. NEW DESCRIPTION FOLLOWS. 18.3 KM (11.4 MI) EAST ALONG STATE HIGHWAY 9 FROM THE CHURCH OF LATTER DAY SAINTS IN SPRINGDALE, IN TOP OF AND 0.9 METER (3 FT) WEST OF THE EAST END OF A 6- BY 24-FOOT SANDSTONE OUTCROP AND OPPOSITE OF A MASSIVE HIGHWAY CUT ON THE INSIDE OF A CURVE, 0.33 KM (0.2 MI) NORTHEAST OF THE EAST END OF THE BRIDGE OVER CLEAR CREEK, 9.1 METERS (30 FT) NORTH OF THE HIGHWAY CENTERLINE, 0.9 METER (3 FT) SOUTH OF THE NORTH EDGE OF THE OUTCROP. THE MARK IS 0.5 M ABOVE THE HIGHWAY.

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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