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Details for Benchmark: MA2059

N 41° 05.294 W 079° 53.431 (NAD 83)

Altitude: 1489

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

Location:
In BUTLER county, PA View Original Datasheet
Designation:
BOYERS
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Reference Points

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The station mark, Reference Marks 1 and 2, and the azimuth mark were all recovered in good condition. Add to description, the power line has been removed and its right-of-way is overgrown and not discernable. The surfaced road is Branchton Road. The power pole and witness post in the station mark description have been removed. Reference Mark 1 is 23.0 feet southwest of the center line of Branchton Road and it projects 4 inches above the surface of the ground. The power pole has been removed. Reference Mark 2 projects 4 inches above the surface of the ground and the power pole has been removed. The azimuth mark projects 3 inches above the surface of the ground and is 2 feet north of the stub of a power pole which projects 3 inches. A wooden witness post is 2 feet southeast of the mark. To reach the azimuth mark from the station, walk due south for 0.4 mile through the woods to the mark.

[Photos:]
photoMA2059(BOYERS) - Cherry Twp Butler County PA
photoMA2059 - Station mark eye level
photoMA2059 - Station mark looking SW
photoMA2059 - RM 1
photoMA2059 - RM 1 eye level
photoMA2059 - RM 1 looking SW
photoMA2059 - RM 2
photoMA2059 - RM 2 eye level
photoMA2059 - RM 2 looking S
photoMA2059 - AZ MK
photoMA2059 - AZ MK eye level
photoMA2059 - AZ MK looking N

Took 3 individual readings (Turned GPS unit off & relocked)
Locked on 8 Sats. My fix was the same each time. My lock gave a fix of N41'05.319 W079'53.405 This fix differed from the reported position. Would anyone who locates this
Benchmark confirm the readings? My fix was from 3 feet directly above the benchmark.
NOTE: On my way out I found a reference marker at
N41'05.304 W079'53.423

Found mark as described. I will be logging this mark for the benchmark contest.

[Photos:]
photoMA2059
photoMA2059 Wide View
Mark is circled in yellow. The orange post is a good reference to look for in the woods.

Documented History (by the NGS)

01/01/1958 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1958 (WER) THE STATION IS LOCATED ON THE WEST RIGHT-OF-WAY OF THE POWER LINE, APPROXIMATELY 5 MILES NORTHWEST OF NORTH WASHINGTON, 1.5 MILES SOUTH-SOUTHEAST OF BOYERS, 0.05 MILE SOUTHEAST OF A SMALL CEMETERY AND ON PROPERTY OWNED BY MR. STEVE MENZEL. TO REACH THE STATION FROM THE POST OFFICE IN BOYERS, GO SOUTHERLY ON STATE HIGHWAY 308 FOR 1.4 MILES TO CROSSROADS, TURN LEFT AND GO EASTERLY ON SURFACED ROAD FOR 0.15 MILE TO WHERE POWER LINE CROSSES ROAD AND THE STATION ON THE RIGHT. STATION MARKS ARE STANDARD DISKS STAMPED BOYERS 1958. THE SURFACE DISK IS SET IN A SQUARE CONCRETE POST WHICH PROJECTS 3 INCHES. IT IS 76 FEET SOUTH-SOUTHWEST OF THE CENTER OF THE SURFACED ROAD, 36 FEET WEST OF THE CENTER OF POWER LINE RIGHT-OF-WAY AND 29 FEET SOUTHWEST OF A LONE POWER POLE WHICH IS NOT BEING USED. A STANDARD WITNESS POST WAS SET 3 FEET WEST OF THE MARK. THE UNDERGROUND DISK IS SET IN AN IRREGULAR MASS OF CONCRETE 24 INCHES BELOW THE SURFACE OF THE GROUND. REFERENCE MARK NO. 1, A STANDARD DISK STAMPED BOYERS NO 1 1958, IS SET IN A SQUARE CONCRETE POST WHICH PROJECTS 3 INCHES. IT IS 2 FEET SOUTH-SOUTHWEST OF THE FIRST POWER POLE ON THE SOUTH SIDE OF THE SURFACED ROAD. REFERENCE MARK NO. 2, A STANDARD DISK STAMPED BOYERS NO 2 1958, IS SET IN A SQUARE CONCRETE POST WHICH PROJECTS 6 INCHES. IT IS 2 FEET NORTH OF POWER POLE AND IN THE CENTER OF POWER LINE RIGHT-OF-WAY. AZIMUTH MARK, A STANDARD DISK STAMPED BOYERS 1958, IS SET IN A SQUARE CONCRETE POST WHICH PROJECTS 4 INCHES. IT IS 2 FEET NORTH OF POWER POLE. A STANDARD WITNESS POST WAS SET 2 FEET SOUTHEAST OF THE MARK. TO REACH THE AZIMUTH MARK FROM THE STATION, GO SOUTH ALONG POWER LINE FOR 0.4 MILE THE AZIMUTH MARK NEAR POWER POLE.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in April 1998.
  • The orthometric height was scaled from a topographic map.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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