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Details for Benchmark: DU0460

N 33° 28.417 W 111° 28.500 (NAD 83)

Altitude: 2106.95

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

Location:
In MARICOPA county, AZ View Original Datasheet
Designation:
2105
Marker Type:
pipe cap
Setting:
set into the top of a metal pipe driven into the ground
Stability:
Mark of questionable or unknown stability.

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Hi! Nana18 signed me in for a benchmark challenge and so I figure that I should find a few. This was one of them.

[Photos:]
photoDU0460 2105

In good condition.

[Photos:]
photoDU0460
BM.
photoDU0460
Nearby

I’m enjoying finding benchmarks. This one was found at 33 28.429 and 111 28.514. It’s in good condition.

Benchmark hunting.

[Photos:]
photo
photo

Recovered in good condition at N 33 28.429 W 111 28.514.

[Photos:]
photoDU0460(2105) - Maricopa County AZ
photoDU0460 - Eye level
photoDU0460 - Looking NE

Found it while doing some geocaching.

Found this Benchmark while heading to Lost Dutchman State Park. All is in fine shape here.

[Photos:]
photoBM_2105
photoBM_2105_WP

still there

Found on an amazing adventure along the Apache Trail

Recovered in good condition.

[Photos:]
photoCloseup of the mark
photoLooking south, mark and witness post in foreground

Found it in good shape

[Photos:]
photoDU0460

Found using Southpawaz coords.

[Photos:]
photoDU0460

Recovered in good condition.

[Photos:]
photoWitness Marker
photoDU0560
photoWITH GPS

Recovered in good condition. Handheld GPSr indicated coordinates of N 33 28.429' W 111 28.514'.

[Photos:]
photoDU0460 2105 closeup
photoDU0460 2105 wide shot looking east

Easily found in good condtion alongside the highway. Set around 1899 according to the USGS Spirit Leveling Book of 1899-1909 Inclusive, Bulletin 463. In excellent condition for over 100 years old.

[Photos:]
photo2105 - Pinal County, AZ
photo2105 - Pinal County, AZ
photo2105 - Pinal County, AZ
photo2105 - Pinal County, AZ
photo2105 - Pinal County, AZ

Found it.

[Photos:]
photoDU0460 (NGS Benchmark)
2100
photoDU0460 (NGS Benchmark)

Good Condition
33.28.430 N 111.28.513 W Alt 2105'

[Photos:]
photoDU0460.JPG
photoDU0460.JPG
N 33° 28.430 W 111° 28.513

The description is adequate, and the co-ordinates are very close.

[Photos:]
photo2105 / DU0460

N33 28.431 W111 28.512 2099 ft,,, found in good condition as described.

[Photos:]
photoDU0460 bm.JPG
photoDU0460 bm gps.JPG
photoDU0460 looking east.JPG
photoDU0460 looking west.JPG
photoDU1460 looking northeast.JPG

perfect speciman.

One of several on this road. Easily found.

N 33° 28.429 W 111° 28.509

Found this one easily. I got 2134 ft. for elevation.

Posting some pictures taken at the site.

TeamBlunder

[Photos:]
photoGPSr and Marker
photoWitness Post and Marker
photoSuperstitions to the SE
photoView to West

Documented History (by the NGS)

Unknown by USGS (MONUMENTED)
01/01/1948 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1948 5.9 MI NE FROM APACHE JUNCTION. ABOUT 5.9 MILES NORTHEAST ALONG STATE HIGHWAY NO. 88 FROM APACHE JUNCTION, ABOUT 1.4 MILES NORTHEAST OF THE GOLDFIELD MINE, 33.5 FEET SOUTHEAST OF THE CENTER LINE OF THE HIGHWAY, 1.7 FEET NORTHEAST OF A WHITE WOODEN WITNESS POST, RIVETED ON THE TOP OF A 3 1/2 INCH IRON PIPE PROJECTING 14 INCHES.
01/01/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 9.6 KM (6.0 MI) NORTHEAST ALONG STATE HIGHWAY 88 FROM THE JUNCTION OF U.S. HIGHWAY 60 AT APACHE JUNCTION, 1.0 KM (0.65 MI) NORTHEAST OF THE MARICOPA-PINAL COUNTY LINE, 0.25 KM (0.15 MI) SOUTHEAST ACROSS COUNTRY FROM THE GOLDEN HILLSIDE MINE, 0.2 KM (0.1 MI) SOUTH OF HIGHWA MILEPOST 202, AT THE SOUTHEAST CORNER OF THE Y JUNCTION OF THE FORKS OF A DIRT ROAD LEADING EAST, 25.6 METERS (84.0 FT) EAST OF THE CENTERLINE OF THE HIGHWAY, 30.5 METERS (100 FT) SOUTH OF THE CENTERLINE OF THE DIRT ROAD, 10.4 METERS (34.0 FT) EAST OF THE CENTERLINE OF THE SOUTH FORK. THE MARK IS 0.3 METERS W FROM A WITNESS POST. THE MARK IS 0.3 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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