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Details for Benchmark: MY3345

N 42° 16.155 W 071° 14.768 (NAD 83)

Altitude: 256

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

Location:
In NORFOLK county, MA View Original Datasheet
Designation:
HIGH ROCK RESET
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Reference Points

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Found while caching

Found this benchmark while looking for a new place to put a cache.

Found in the same condition as the other finders.

[Photos:]
photoMY3345 (HIGH ROCK RESET) station & RM2 shot
photoMY3345 (HIGH ROCK RESET) station & RM1 shot
photoMY3345 (HIGH ROCK RESET) RM2 semiwide shot
photoMY3345 (HIGH ROCK RESET) RM1 semiwide shot
photoMY3345 (HIGH ROCK RESET) RM2 shank
photoMY3345 (HIGH ROCK RESET) RM1 shank
photoMY3345 (HIGH ROCK RESET) station shank

Found place of main disk - disk still not there, but post is!

[Photos:]
photoSite of BM and foot
photoView of Blue Hill from High Rock
Now THAT's a high rock!

Recovered all three marks in poor condition. The disks have been plundered, with just the shanks remaining. This is not surprising for a teenage party spot with the name of HIGH ROCK!

[Photos:]
photoEx-disk and Benchmark Buddha, Needham MA
photoRM #1 and Benchmark Buddha, Needham MA
photoRM #2 and Benchmark Buddha, Needham MA

Documented History (by the NGS)

01/01/1958 by CGS (MONUMENTED)
01/01/1936 by MAGS (SEE DESCRIPTION)
DESCRIBED BY MASSACHUSETTS GEODETIC SURVEY 1936 THIS STATION IS AN OCCUPIED SECOND-ORDER STATION MARKED BY A 3/4-INCH DRILL HOLE WITHIN A 2 1/2-INCH TRIANGLE CUT IN THE SUMMIT OF A HUGE LEDGE KNOWN AS HIGH ROCK ESTABLISHED BY THE STATE OF MASSACHUSETTS. LOCATED ABOUT 1 MILE SW FROM NEEDHAM TOWN HALL, IN THE S CENTRAL PART OF THE TOWN. NO REFERENCE MARKS ESTABLISHED. AZIMUTH MARK, NEEDHAM TOWN HALL, A MASSACHUSETTS GEODETIC SURVEY SECOND-ORDER STATION, MARKED BY A SHAFT OF A WEATHER VANE BEARING A BALL AND CARDINAL POINTS, ON THE GILDED DOME OF THE BELFRY ABOVE THE CLOCK TOWER ON THE RED BRICK TOWN HALL, IN GEODETIC AZIMUTH 211 DEG 16 MIN 15.7 SEC FROM STATION. VIEW FROM GROUND GOOD IN ALL DIRECTIONS. TO REACH STATION FROM NEEDHAM TOWN HALL, FOLLOW CHESTNUT STREET S ABOUT 1 MILE, TURN SHARP RIGHT, NW, INTO HIGH ROCK STREET, GO 0.3 MILE TO BRIDGE OVER WOONSOCKET BRANCH OF THE NEW YORK NEW HAVEN AND HARTFORD RAILWAY AND CONTINUE 590 FEET TO A PATH ON LEFT WHICH LEADS 700 FEET SOUTHERLY UPHILL THROUGH WOODS TO STATION. LEDGE IS VISIBLE FROM HIGH ROCK STREET.
01/01/1958 by CGS (SEE DESCRIPTION)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1958 (GWM) THE STATION WAS RECOVERED AND FOUND AS DESCRIBED. THE STATION WAS MARKED BY A 3/4 INCH DRILL HOLE IN THE HUGE BOULDER. A STANDARD STATION MARK DISK WAS SET IN THE DRILL HOLE. REFERENCE MARKS 1 AND 2 WERE ESTABLISHED AT THIS TIME. A NEW DESCRIPTION OF THE STATION AND A TO REACH FOLLOWS-- THE STATION IS LOCATED ABOUT 1 MILE SOUTHWEST OF NEEDHAM TOWN HALL, IN THE SOUTH CENTRAL SECTION OF NEEDHAM, IN A HUGE BOULDER KNOWN LOCALLY AS HIGH ROCK. THE DISK IS SET FLUSH IN A DRILL HOLE IN THE HIGHEST POINT OF THE MOST WESTERLY ONE OF TWO HIGH POINTS OF THE HUGE BOULDER. THE DISK IS STAMPED HIGH ROCK 1886 1958. NOTE 2. TO REACH THE STATION FROM THE NEEDHAM TOWN HALL, ON CHESTNUT STREET, IN NEEDHAM, GO SOUTH ON CHESTNUT STREET FOR 0.75 MILE TO HIGH ROCK STREET. TURN SHARP RIGHT AND GO NORTHWEST ON HIGH ROCK STREET FOR 0.25 MILE TO A BRIDGE OVER A RAILROAD TRACK. CONTINUE NORTHWEST ON HIGH ROCK STREET FOR 0.25 MILE TO A WOODS ROAD ON THE LEFT. TURN LEFT AND GO WESTERLY ON THE WOODS ROAD FOR 0.05 MILE TO A Y-FORK. KEEP LEFT FORK AND GO SOUTHWEST FOR 0.1 MILE AT THE SOUTH SIDE OF THE HUGE BOULDER. FROM THIS POINT PACK UP HILL (NORTHERLY) FOR ABOUT 200 FEET AND PICK WAY UP HILL AND TO THE TOP OF THE ROCK AND THE STATION AS DESCRIBED. REFERENCE MARK 1 IS 20 FEET WESTERLY OF THE MOST WESTERLY ONE OF THE TWO HIGHEST POINTS OF THE BOULDER, 4 FEET EAST OF THE WEST EDGE OF THE BOULDER AND ABOUT MIDWAY BETWEEN THE NORTH AND SOUTH SIDES OF THE BOULDER. THE DISK IS SET FLUSH IN A DRILL HOLE. THE DISK IS STAMPED HIGH ROCK NO 1 1886 1958. REFERENCE MARK 2 IS SET FLUSH IN A DRILL HOLE IN THE HIGHEST POINT OF THE MOST EASTERLY ONE OF THE TWO HIGHEST POINTS OF THE BOULDER. THE DISK IS STAMPED HIGH ROCK NO 2 1886 1958.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in June 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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