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Details for Benchmark: MC0260

N 41° 30.800 W 082° 56.300 (NAD 83)

Altitude: 576.99

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

Location:
In OTTAWA county, OH View Original Datasheet
Designation:
PORT CLINTON
Marker Type:
bench mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Benchmark found and in good condition.

[Photos:]
photoMC0260
photoMC0260 2

My favorite kind of Benchmark:
1) A "Name" instead of a "Number"
2) A quick find while traveling.

[Photos:]
photoMC0260 Area
photoMC0260 Location
photoMC0260 Station

In the area, found benchmark in good condition. It was an easy find.
Took pictures but somehow they didn't turn out.
Team rbass

[This entry was edited by Team rbass on Wednesday, October 07, 2009 at 8:01:36 AM.]

N 41° 30.819 W 082° 56.328

Station recovered as described in good condition.

[Photos:]
photoBM_MC0260_1.jpg
photoBM_MC0260_2.jpg
photoBM_MC0260_3.jpg
photoBM_MC0260_4.jpg

The mark is in good condition at N 41° 30.816 W 82° 56.324.

[Photos:]
photoPORT CLINTON - Port Clinton OH
photoLooking N toward mark
photoLooking E from mark
photoLooking W from mark

On a road trip from So. Cal. to Ohio and doing some caching and benchmarking along the way.
This was a quick and easy find and the disk is in great condition. It is just sitting there waiting for more of us to come and find it.

Tigger 2

[Photos:]
photoTigger with the disk.
photoClose up of the disk.
photoWide shot of the Pumping House.
Tigger is next to the disk, just to the right of the hose reel.
N 41° 30.827 W 082° 56.328

Mark was found at above coordinates in good condition.

Documented History (by the NGS)

01/01/1934 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1934 AT PORT CLINTON. AT PORT CLINTON, OTTAWA COUNTY, AT THE CITY WATER WORKS, IN THE WEST END OF THE TOP STEP AT THE SOUTH ENTRANCE, 24.4 FEET NORTHWEST OF THE EDGE OF THE ROUND BRICK FISH POND, 2 FEET SOUTH OF THE SOUTH FACE OF THE BUILDING, AND ABOUT 2 FEET ABOVE THE GROUND. A STANDARD DISK, STAMPED PORT CLINTON 1934.
01/01/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 RECOVERED IN GOOD CONDITION.
01/01/1984 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1984 RECOVERED IN GOOD CONDITION.

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. WARNING-Repeat measurements at this control monument indicate possible vertical movement.
  • 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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