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Details for Benchmark: MB0284

N 41° 29.067 W 080° 26.650 (NAD 83)

Altitude: 988.17

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

Location:
In MERCER county, PA View Original Datasheet
Designation:
Q 62
Marker Type:
bench mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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more to come ....

[Photos:]
photoBon Echo found NGS Benchmark MB0284

The mark is in good condition at N 41° 29.068 W 080° 26.644. Add to description, State Highway 458 is now State Highway 58, and the railroad tracks have been removed.

[Photos:]
photoMB0284(Q 62) - Jamestown, Mercer County PA
photoMB0284 - Looking N from mark
photoMB0284 - Looking E toward mark(distant view)
photoMB0284 - Looking W from mark
photoMB0284 - Looking S from mark

On our way back to Ohio and found this along with the cache...

[Photos:]
photoD:\My Documents\My Pictures\GEO Cache\Benchmark Ja

Found as described.

[Photos:]
photoq62 24270.jpg

FOUND IT WHILE LOOKING FOR CACHE LIKE EVERYBODY ELSE.

Nice easy find. I wish I could say the same about the near by cache. RAM4070

This was our first bench mark we ever found. We were looking for the cache and I think we found this by accident. But none the less it was really cool to see a bench mark in person. If that makes sense. Thanks

[Photos:]
photoLittle nervous to get to close

Found It

Recovered as described, in good condition.

[Photos:]
photoQ 62 / MB0683
A close-up of the mark, with the GPSr.
photoQ 62 / MB0683
A close-up of the mark alone.
photoQ 62 / MB0683
A wider view of the general area, looking west.

Found while geocaching with GeaugaGarmin today. This is our first benchmark.
3beans

Found with 3beans while geocaching in the area.

I found this benchmark today while geocaching with Hunster.

[Photos:]
photoQ62 Benchmark

I found this benchmark in good shape while doing a nearby geocache.

[Photos:]
photoQ62 Benchmark

easy find while out cache hunting.

I found it searching for a nearby Geocache

Found it while searching for a nearby cache.

Found it near a cache I was looking for. Interesting place to put it.

N 41° 29.068 W 080° 26.641

Found this one with the nearby cache. The benchmark was in good shape.

[Photos:]
photoMB0284
photoMB0284 w/ GPSr

Found benchmark after finding a nearby cache.

Found - in good shape.

Erie Scouter chipped off the ice and there it was! Neat! Be VERY careful if you try to find this one. It is not overly accessible and could be rather dangerous especially in the winter!

Had to chip the ice away to find this one.

Our 2nd benchmark we found today.

The 2nd benchmark we found today which was near a cache we were looking for. A fairly easy one to find.

Found while searching for nearby geocache. A few large scratches but it fairly good shape.

[Photos:]
photoBenchmark...
photoBenchmark position...

Another quick one while caching.

[Photos:]
photoQ62 w-GPS.JPG

This was a fun find in an unexpected place! Precarious Picture Taking!

[Photos:]
photoBM.jpg

Found it on my way to the cache!!
Thanks ALGOMA!!

This is the benchmark closest to my home, and it is embedded in the oh-so-familiar and locally famous Stone Arch railroad bridge. Most notably different about the site from the time when the marker was placed is the absence of the railroad, which had its last days of freight hauling in the mid-eighties. This is a slightly dangerous benchmark. From the Aamoco station just east of the bridge, I had to climb up the giant ramp for four-wheel RV's which leads to the RR bed track that extends for miles of RVing enjoyment. Then I had to sit on the top stone of the SW bridge support with nothing to hold on to. I jumped down to the benchmark's stone to take the closeup. The mark is in good condition, but if the bridge had been torn down a few years ago like they had been planning to, it would be gone.

[Photos:]
photoPrecarious viewing!
Don't go up here if you have acrophobia!
photoCloseup
Good condition.
photoThe old Railroad bed
Now it's used for joy rides.
photoThe view west
The drivers wondered what the heck I was doing.

Documented History (by the NGS)

01/01/1935 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1935 0.4 MI W FROM JAMESTOWN. 0.4 MILE WEST ALONG THE NEW YORK CENTRAL RAILROAD FROM THE STATION AT JAMESTOWN, AT STATION 1881+50, AT 24-FOOT SPAN STONE-ARCH BRIDGE 87 OVER STATE HIGHWAY 458, IN THE TOP OF THE TOP STEP OF THE SOUTHEAST WING WALL, 12 FEET SOUTH OF THE SOUTH RAIL, AND ABOUT 3 FEET LOWER THAN THE TRACK. A STANDARD DISK, STAMPED Q 62 1935.

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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