The NGS Data Sheet
See file dsdata.pdf for more information about the datasheet.
PROGRAM = datasheet95, VERSION = 8.12.5.18
Starting Datasheet Retrieval...
1 National Geodetic Survey, Retrieval Date = APRIL 23, 2024 09:12:18 EDT
MZ1957 ***********************************************************************
MZ1957 DESIGNATION - GREYLOCK RM 1 RESET
MZ1957 PID - MZ1957
MZ1957 STATE/COUNTY- MA/BERKSHIRE
MZ1957 COUNTRY - US
MZ1957 USGS QUAD - WILLIAMSTOWN (2018)
MZ1957
MZ1957 *CURRENT SURVEY CONTROL
MZ1957 ______________________________________________________________________
MZ1957* NAD 83(2011) POSITION- 42 38 13.34757(N) 073 09 57.33343(W) ADJUSTED
MZ1957* NAD 83(2011) ELLIP HT- 1034.057 (meters) (06/27/12) ADJUSTED
MZ1957* NAD 83(2011) EPOCH - 2010.00
MZ1957* NAVD 88 ORTHO HEIGHT - 1063.4 (meters) 3489. (feet) GPS OBS
MZ1957 ______________________________________________________________________
MZ1957 NAVD 88 orthometric height was determined with geoid model GEOID99
MZ1957 GEOID HEIGHT - -29.339 (meters) GEOID99
MZ1957 GEOID HEIGHT - -29.395 (meters) GEOID18
MZ1957 NAD 83(2011) X - 1,361,159.532 (meters) COMP
MZ1957 NAD 83(2011) Y - -4,498,707.035 (meters) COMP
MZ1957 NAD 83(2011) Z - 4,298,626.492 (meters) COMP
MZ1957 LAPLACE CORR - 8.63 (seconds) DEFLEC18
MZ1957
MZ1957 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
MZ1957 Standards:
MZ1957 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
MZ1957 Horiz Ellip SD_N SD_E SD_h (unitless)
MZ1957 -------------------------------------------------------------------
MZ1957 NETWORK 0.97 1.63 0.45 0.32 0.83 0.00290876
MZ1957 -------------------------------------------------------------------
MZ1957 Click here for local accuracies and other accuracy information.
MZ1957
MZ1957.The horizontal coordinates were established by GPS observations
MZ1957.and adjusted by the National Geodetic Survey in June 2012.
MZ1957
MZ1957.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
MZ1957.been affixed to the stable North American tectonic plate. See
MZ1957.NA2011 for more information.
MZ1957
MZ1957.The horizontal coordinates are valid at the epoch date displayed above
MZ1957.which is a decimal equivalence of Year/Month/Day.
MZ1957
MZ1957.The orthometric height was determined by GPS observations and a
MZ1957.high-resolution geoid model.
MZ1957
MZ1957.Significant digits in the geoid height do not necessarily reflect accuracy.
MZ1957.GEOID18 height accuracy estimate available here.
MZ1957
MZ1957.Click photographs - Photos may exist for this station.
MZ1957
MZ1957.The X, Y, and Z were computed from the position and the ellipsoidal ht.
MZ1957
MZ1957.The Laplace correction was computed from DEFLEC18 derived deflections.
MZ1957
MZ1957.The ellipsoidal height was determined by GPS observations
MZ1957.and is referenced to NAD 83.
MZ1957
MZ1957. The following values were computed from the NAD 83(2011) position.
MZ1957
MZ1957; North East Units Scale Factor Converg.
MZ1957;SPC MA M - 933,163.761 63,371.529 MT 0.99999352 -1 07 08.6
MZ1957;SPC MA M - 3,061,554.77 207,911.42 sFT 0.99999352 -1 07 08.6
MZ1957;SPC NY E - 423,218.004 259,409.681 MT 1.00004723 +0 54 13.4
MZ1957;SPC NY E - 1,388,507.73 851,079.93 sFT 1.00004723 +0 54 13.4
MZ1957;SPC VT - 15,437.557 445,383.081 MT 1.00000097 -0 27 03.9
MZ1957;SPC VT - 50,648.05 1,461,227.66 sFT 1.00000097 -0 27 03.9
MZ1957;UTM 18 - 4,722,140.601 650,371.420 MT 0.99987820 +1 14 33.2
MZ1957
MZ1957! - Elev Factor x Scale Factor = Combined Factor
MZ1957!SPC MA M - 0.99983786 x 0.99999352 = 0.99983138
MZ1957!SPC NY E - 0.99983786 x 1.00004723 = 0.99988508
MZ1957!SPC VT - 0.99983786 x 1.00000097 = 0.99983882
MZ1957!UTM 18 - 0.99983786 x 0.99987820 = 0.99971607
MZ1957
MZ1957: Primary Azimuth Mark Grid Az
MZ1957:SPC MA M - MOUNT GRACE 2 RM 1 085 39 59.4
MZ1957:SPC NY E - MOUNT GRACE 2 RM 1 083 38 37.4
MZ1957:SPC VT - MOUNT GRACE 2 RM 1 084 59 54.7
MZ1957:UTM 18 - MOUNT GRACE 2 RM 1 083 18 17.6
MZ1957
MZ1957_U.S. NATIONAL GRID SPATIAL ADDRESS: 18TXN5037122140(NAD 83)
MZ1957
MZ1957|---------------------------------------------------------------------|
MZ1957| PID Reference Object Distance Geod. Az |
MZ1957| dddmmss.s |
MZ1957| DA2620 GREYLOCK RM 7 55.236 METERS 01304 |
MZ1957| MZ1959 GREYLOCK RM 8 33.195 METERS 06738 |
MZ1957| MZ1489 MOUNT GRACE 2 RM 1 APPROX.66.7 KM 0843250.8 |
MZ1957| MZ1958 GREY MAG 40.256 METERS 13808 |
MZ1957| DA2618 GREYLOCK RM 5 18.959 METERS 15351 |
MZ1957| DA2619 GREYLOCK RM 6 49.475 METERS 31856 |
MZ1957|---------------------------------------------------------------------|
MZ1957
MZ1957 SUPERSEDED SURVEY CONTROL
MZ1957
MZ1957 NAD 83(2007)- 42 38 13.34788(N) 073 09 57.33415(W) AD(2002.00) 0
MZ1957 ELLIP H (02/10/07) 1034.071 (m) GP(2002.00)
MZ1957 NAD 83(1996)- 42 38 13.34808(N) 073 09 57.33453(W) AD( ) A
MZ1957 ELLIP H (09/18/02) 1034.074 (m) GP( ) 4 2
MZ1957 NAD 83(1996)- 42 38 13.35099(N) 073 09 57.33603(W) AD( ) 1
MZ1957 NAD 83(1996)- 42 38 13.35100(N) 073 09 57.33592(W) AD( ) 1
MZ1957 NAD 83(1992)- 42 38 13.35133(N) 073 09 57.33623(W) AD( ) 1
MZ1957 NAD 83(1992)- 42 38 13.35149(N) 073 09 57.33655(W) AD( ) 1
MZ1957 NAD 83(1986)- 42 38 13.35206(N) 073 09 57.33694(W) AD( ) 1
MZ1957 NAD 27 - 42 38 13.05400(N) 073 09 58.96100(W) AD( ) 1
MZ1957
MZ1957.Superseded values are not recommended for survey control.
MZ1957
MZ1957.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
MZ1957.See file dsdata.pdf to determine how the superseded data were derived.
MZ1957
MZ1957_MARKER: DR = REFERENCE MARK DISK
MZ1957_SETTING: 66 = SET IN ROCK OUTCROP
MZ1957_STAMPING: RM 1
MZ1957_MARK LOGO: CGS
MZ1957_MAGNETIC: N = NO MAGNETIC MATERIAL
MZ1957_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
MZ1957+STABILITY: POSITION/ELEVATION WELL
MZ1957_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
MZ1957+SATELLITE: SATELLITE OBSERVATIONS - August 10, 2004
MZ1957
MZ1957 HISTORY - Date Condition Report By
MZ1957 HISTORY - 1937 MONUMENTED MAGS
MZ1957 HISTORY - 19990618 GOOD USPSQD
MZ1957 HISTORY - 20010725 GOOD MAGS
MZ1957 HISTORY - 20040810 GOOD GEOCAC
MZ1957
MZ1957 STATION DESCRIPTION
MZ1957
MZ1957'DESCRIBED BY MASSACHUSETTS GEODETIC SURVEY 1937
MZ1957'STATION MARK IS A STATE SURVEY STANDARD REFERENCE DISK, STAMPED
MZ1957'GREYLOCK R.M. NO. 1, 1937, SET BY THE MASSACHUSETTS GEODETIC SURVEY IN
MZ1957'1937 IN LEDGE OUTCROP, IN OLD DRILL HOLE, WITHIN SQUARE, WITH ARROW,
MZ1957'FORMERLY MARKING REFERENCE MARK NO. 1 OF CGS STATION GREYLOCK 1874,
MZ1957'ON THE SUMMIT OF MOUNT GREYLOCK, ON THE WESTERN EDGE OF ADAMS, ABOUT
MZ1957'0.25 MILE FROM THE WILLIAMSTOWN LINE. A SQUARE TOWER, FORMERLY ON THE
MZ1957'SUMMIT, IS GONE, AND STATION GREYLOCK 1874, AND ITS REFERENCE MARKS
MZ1957'NOS. 2, 3, AND 4, WERE DESTROYED IN 1932 BY THE BUILDING OF A ROUND
MZ1957'GRANITE MEMORIAL TOWER 110 FEET HIGH, WITH LIGHTS AT THE TOP. IT IS
MZ1957'SAID THAT THE NEW TOWER IS CENTERED ON THE OLD STATION. REFERENCE
MZ1957'MARK NO. 1 IS ABOUT 50 FEET S 14 DEG E (TRUE) FROM THE OUTER WALL OF
MZ1957'THE TOWER, AND ABOUT 1 FOOT LOWER THAN THE GENERAL LEVEL OF THE GROUND
MZ1957'AT THE BASE OF THE TOWER.
MZ1957'
MZ1957'REFERENCE MARKS--IN 1931, FOUR CGS STANDARD REFERENCE DISKS WERE SET
MZ1957'BY THE CGS IN LEDGE AT GROUND LEVEL. IN 1937, THE MASSACHUSETTS
MZ1957'GEODETIC SURVEY LOCATED THEM FROM REFERENCE MARK NO. 1, 1937, AS
MZ1957'FOLLOWS--REFERENCE MARK NO. 5, 62.20 FEET, S26E. REFERENCE MARK NO.
MZ1957'6, 162.32 FEET, N41W, IN LARGE OUTCROP OF WHITE QUARTZITE. REFERENCE
MZ1957'MARK NO. 7, 181.22 FEET, N13E. REFERENCE MARK NO. 8, 108.96 FEET,
MZ1957'N68E. MAGNETIC STATION GREY MAG, MARKED BY A CGS STANDARD MAGNETIC
MZ1957'STATION DISK SET IN LEDGE, IS 132.00 FEET, S42E. TRIANGULATION
MZ1957'STATION MOUNT GRACE 2, REFERENCE MARK NO. 1, 1937, IS N84E OF STATION.
MZ1957'
MZ1957'VIEW CLEAR IN ALL DIRECTIONS EXCEPT WHERE OBSTRUCTED BY THE TOWER, A
MZ1957'LITTLE W OF N. A 10-FOOT TRIPOD WAS USED IN 1937.
MZ1957'
MZ1957'TO REACH STATION FROM LANESBORO, FOLLOW ROUTE 7 NORTHERLY FROM THE
MZ1957'POST OFFICE FOR 1.25 MILES TO A RIGHT FORK AT SIGN MT GREYLOCK.
MZ1957'FOLLOW RIGHT FORK FOR 0.8 MILE TO A SECOND FORKS AND SIGN MT GREYLOCK.
MZ1957'BEAR RIGHT AND GO 0.45 MILE TO A THIRD FORKS. BEAR LEFT AND GO 6.4
MZ1957'MILES TO A FOUTH FORKS AT SIGN 107 CCC CAMP. BEAR RIGHT AND GO 1.6
MZ1957'MILES TO A FIFTH FORKS. BEAR RIGHT AND GO 0.85 MILE TO THE SUMMIT.
MZ1957'
MZ1957'NOTE-STATION MAY BE REACHED FROM NORTH ADAMS, BUT NOT FROM ADAMS.
MZ1957
MZ1957 STATION RECOVERY (1999)
MZ1957
MZ1957'RECOVERY NOTE BY US POWER SQUADRON 1999
MZ1957'RECOVERED IN GOOD CONDITION.
MZ1957
MZ1957 STATION RECOVERY (2001)
MZ1957
MZ1957'RECOVERY NOTE BY MASSACHUSETTS GEODETIC SURVEY 2001 (AB)
MZ1957'GREYLOCK RM 1 RESET, RM 5, RM 6, RM 7 AND GREY MAG WERE RECOVERED IN
MZ1957'GOOD CONDITION BY THE MASS HIGHWAY GEODETIC SURVEY, AUGUST 2001.
MZ1957'UPDATED DESCRIPTION FOR RM 1 RESET FOLLOWS.
MZ1957'
MZ1957'THE STATION IS LOCATED ON THE SUMMIT OF MT GREYLOCK IN THE TOWN OF
MZ1957'ADAMS, ON PROPERTY OWNED BY THE MT GREYLOCK STATE RESERVATION.
MZ1957'
MZ1957'TO REACH THE STATION FROM THE LIBRARY ON ROUTE 7 IN LANESBORO, GO
MZ1957'NORTH FOR 1.0 MI (1.6 KM) ON ROUTE 7 TO THE Y-JUNCTION OF NORTH ROAD
MZ1957'ON THE RIGHT, TURN RIGHT AND GO NORTH FOR 0.8 MI (1.3 KM) ON NORTH
MZ1957'ROAD TO THE JUNCTION OF QUARRY ROAD ON THE RIGHT, TURN RIGHT AND GO
MZ1957'EAST FOR 0.45 MI (0.72 KM) ON QUARRY ROAD TO THE Y-JUNCTION OF
MZ1957'ROSSWELL ROAD ON THE LEFT, TURN LEFT AND GO NORTH FOR 0.6 MI (1.0 KM)
MZ1957'ON ROSSWELL ROAD TO A GATE AT THE VISITORS CENTER FOR THE MT GREYLOCK
MZ1957'STATE RESERVATION, CONTINUE THROUGH THE GATE AND GO NORTH FOR 5.6 MI
MZ1957'(9.0 KM) ON ROSSWELL ROAD TO A ROAD LEFT, CONTINUE STRAIGHT AHEAD AND
MZ1957'GO NORTHEAST FOR 2.4 MI (3.9 KM) ON ROSSWELL ROAD TO A PARKING AREA,
MZ1957'THE GREYLOCK WAR MEMORIAL TOWER AND THE STATION AT THE SUMMIT.
MZ1957'
MZ1957'TO REACH THE STATION FROM THE WESTERN JUNCTION OF ROUTES 2 AND 8 IN
MZ1957'NORTH ADAMS, GO WEST FOR 1.1 MI (1.8 KM) ON ROUTE 2 TO THE JUNCTION OF
MZ1957'NOTCH ROAD ON THE LEFT, TURN LEFT AND GO SOUTH FOR 1.2 MI (1.9 KM) ON
MZ1957'NOTCH ROAD TO THE JUNCTION OF PATTISON ROAD STRAIGHT AHEAD AND NOTCH
MZ1957'ROAD ON THE LEFT, TURN LEFT AND GO SOUTHEAST FOR 1.1 MI (1.8 KM) ON
MZ1957'NOTCH ROAD TO THE JUNCTION OF RESERVOIR ROAD ON THE LEFT, CONTINUE TO
MZ1957'THE RIGHT AND GO WEST FOR 4.2 MI (6.8 KM) ON NOTCH ROAD TO A GATE AT
MZ1957'THE ENTRANCE TO THE RESERVATION, CONTINUE THROUGH THE GATE AND GO
MZ1957'SOUTH FOR 1.7 MI (2.7 KM) ON NOTCH ROAD TO A T-JUNCTION AT A STOP
MZ1957'SIGN, TURN LEFT AND GO EAST FOR 0.8 MI (1.3 KM) TO THE PARKING AREA
MZ1957'AT THE SUMMIT. PERMISSION TO DRIVE FROM THE PARKING LOT TO THE
MZ1957'STATION SHOULD BE OBTAINED FROM THE RANGER ON-DUTY.
MZ1957'
MZ1957'THE STATION IS A STANDARD USCGS REFERENCE MARK DISK STAMPED --R.M.
MZ1957'1--, SET IN A DRILL HOLE IN LEDGE OUTCROP, FLUSH WITH THE GROUND.
MZ1957'48.6 FT (14.8 M) SOUTHEAST FROM THE WEST GRANITE ENDPOST OF THE
MZ1957'SOUTHERN ENTRANCE STEPS TO THE TOWER, 43.2 FT (13.2 M) SOUTH FROM THE
MZ1957'EAST GRANITE ENDPOST OF THE STEPS, 12.7 FT (3.9 M) EAST FROM THE EDGE
MZ1957'OF A GRAVEL WALKWAY LEADING TO THE PARKING LOT. 62.2 FT (19.0 M)
MZ1957'NORTH-NORTHWEST FROM GREYLOCK RM 5, 162.3 FT (49.5 M) SOUTHEAST FROM
MZ1957'GREYLOCK RM 6, 181.2 FT (55.2 M) SOUTHWEST FROM GREYLOCK RM 7 AND
MZ1957'132.0 FT (40.2 M) NORTHWEST FROM MAGNETIC STATION GREY MAG.
MZ1957
MZ1957 STATION RECOVERY (2004)
MZ1957
MZ1957'RECOVERY NOTE BY GEOCACHING 2004 (DKA)
MZ1957'RECOVERED IN GOOD CONDITION.
*** retrieval complete.
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