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Details for Benchmark: MB1707

N 41° 56.400 W 080° 32.350 (NAD 83)

Altitude: 681.22

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

Location:
In ASHTABULA county, OH View Original Datasheet
Designation:
T 321
Marker Type:
metal rod
Setting:
stainless steel rod
Stability:
Probably hold position/elevation well.

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Found it with Moumoute, Ouestcharly and my sister Moumsy on our 4 days
vacation in the states.

Found it with Moumoute, Ouestcharly and my sister Pistache911 on our 4 days
vacation in the states.

Found this benchmark on our way back from the Mega event ASP Geobash 6 (2011). Very interesting.

[Photos:]
photoMéga event GeoBash mai 2011 031
photoMéga event GeoBash mai 2011 032

Found this one with Moumsy, Pistache911 and Ouestcharly.
We have to come to the USA to log benchmarcks, geocaching.com only accepts US survey disks

The mark is in good condition at N 41° 56.392 W 080° 32.364.

[Photos:]
photoMB1707(T 321) - Conneaut OH
photoMB1707 - cover open
photoMB1707 - Looking N from mark
photoMB1707 - Looking E on US 20
photoMB1707 - Looking W on US 20
photoMB1707 - Looking S from mark

Documented History (by the NGS)

01/01/1981 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1981 1.5 KM (0.95 MI) EAST FROM CONNEAUT. 1.5 KILOMETERS (0.95 MILES) EAST ALONG US HIGHWAY 20 FROM THE US POST OFFICE IN CONNEAUT TO THE WESTLEYAN METHODIST CHURCH AND THE MARK ON THE RIGHT, THE MARK IS ON THE EAST SIDE OF POWER POLE NUMBER 5133783, 5.48 METERS (18.0 FEET) SOUTHEAST OF THE CENTER LINE OF THE EASTBOUND LANE OF THE HIGHWAY, 31.08 METERS (102.0 FEET) WEST OF THE CENTER OF FURNACE ROAD, 10.66 METERS (35.0 FEET) NORTH-NORTHEAST OF THE NORTHEAST CORNER OF THE CHURCH, 0.70 METER (2.3 FEET) EAST OF POWER POLE NUMBER 5133783 AND 0.30 METER (1.0 FOOT) NORTH OF THE 3-FOOT HIGH CHAIN LINK PROPERTY LINE FENCE OF THE CHURCH. THE MARK IS 0.30 M ABOVE THE HIGHWAY.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (GM) RECOVERED IN GOOD CONDITION.
11/15/1993 by OHDT (GOOD)
RECOVERY NOTE BY OHIO DEPARTMENT OF TRANSPORTATION 1993 (BM) RECOVERED IN GOOD CONDITION.
07/04/1996 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1996 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.
  • 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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