MZ1473 ***********************************************************************
MZ1473  CBN         -  This is a Cooperative Base Network Control Station.
MZ1473  DESIGNATION -  MONADNOCK
MZ1473  PID         -  MZ1473
MZ1473  STATE/COUNTY-  NH/CHESHIRE
MZ1473  USGS QUAD   -
MZ1473
MZ1473                         *CURRENT SURVEY CONTROL
MZ1473  ___________________________________________________________________
MZ1473* NAD 83(1996)-  42 51 40.96604(N)    072 06 29.05599(W)     ADJUSTED
MZ1473* NAVD 88     -       966.1    (meters)    3170.     (feet)  GPS OBS
MZ1473  ___________________________________________________________________
MZ1473  X           -   1,438,763.256 (meters)                     COMP
MZ1473  Y           -  -4,456,643.144 (meters)                     COMP
MZ1473  Z           -   4,316,865.003 (meters)                     COMP
MZ1473  LAPLACE CORR-           1.83  (seconds)                    DEFLEC99
MZ1473  ELLIP HEIGHT-         938.59  (meters)                     GPS OBS
MZ1473  GEOID HEIGHT-         -27.39  (meters)                     GEOID99
MZ1473
MZ1473  HORZ ORDER  -  B
MZ1473  ELLP ORDER  -  FIRST     CLASS I
MZ1473
MZ1473.The horizontal coordinates were established by GPS observations
MZ1473.and adjusted by the National Geodetic Survey in July 1997.
MZ1473
MZ1473.The orthometric height was determined by GPS observations and a
MZ1473.high-resolution geoid model.
MZ1473
MZ1473.The X, Y, and Z were computed from the position and the ellipsoidal ht.
MZ1473
MZ1473.The Laplace correction was computed from DEFLEC99 derived deflections.
MZ1473
MZ1473.The ellipsoidal height was determined by GPS observations
MZ1473.and is referenced to NAD 83.
MZ1473
MZ1473.The geoid height was determined by GEOID99.
MZ1473
MZ1473;                    North         East     Units   Scale      Converg.
MZ1473;SPC MA M     - 3,139,521.79    493,125.18   sFT  1.00003104 -0 24 30.5
MZ1473;SPC NH       -    40,237.565   263,927.824   MT  0.99998267 -0 18 00.9
MZ1473;SPC MA M     -   956,928.155   150,304.855   MT  1.00003104 -0 24 30.5
MZ1473;SPC VT       -    40,217.468   532,028.885   MT  0.99997690 +0 15 59.8
MZ1473;UTM  18      - 4,749,478.913   736,253.194   MT  1.00028672 +1 58 05.1
MZ1473
MZ1473:                Primary Azimuth Mark                     Grid Az
MZ1473:SPC NH       -  CROTCHET MTN LOOKOUT TOWER               051 40 25.3
MZ1473:SPC MA M     -  CROTCHET MTN LOOKOUT TOWER               051 46 54.9
MZ1473:SPC VT       -  CROTCHET MTN LOOKOUT TOWER               051 06 24.6
MZ1473:UTM  18      -  CROTCHET MTN LOOKOUT TOWER               049 24 19.3
MZ1473
MZ1473|---------------------------------------------------------------------|
MZ1473| PID    Reference Object                     Distance      Geod. Az  |
MZ1473|                                                           dddmmss.s |
MZ1473|        MONADNOCK RM 4                        2.710 METERS 01035     |
MZ1473| MY3834 CROTCHET MTN LOOKOUT TOWER          APPROX.24.4 KM 0512224.4 |
MZ1473| MY3798 UNKONOONUC MTN TV STA WMUR MST      APPROX.44.5 KM 0720045.1 |
MZ1473|        MONADNOCK RM 5                        5.450 METERS 09202     |
MZ1473|        MONADNOCK RM 8                        5.818 METERS 10027     |
MZ1473|        MONADNOCK RM 6                        8.108 METERS 18133     |
MZ1473|        MONADNOCK RM 1                       11.515 METERS 18407     |
MZ1473| MZ1498 MT CRESSON AERO OBSTR LIGHT         APPROX.15.1 KM 2835247.5 |
MZ1473|        MONADNOCK RM 7                       10.290 METERS 30200     |
MZ1473|---------------------------------------------------------------------|
MZ1473
MZ1473                          SUPERSEDED SURVEY CONTROL
MZ1473
MZ1473  NAD 83(1992)-  42 51 40.96414(N)    072 06 29.05533(W) AD(       ) B
MZ1473  ELLIP HT    -         938.60  (m)                      GP(       ) 4 1
MZ1473  NAD 83(1986)-  42 51 40.97204(N)    072 06 29.05316(W) AD(       ) 1
MZ1473  NAD 27      -  42 51 40.67500(N)    072 06 30.75300(W) AD(       ) 1
MZ1473  NGVD 29     -       966.7    (m)         3172.     (f) VERT ANG
MZ1473
MZ1473.Superseded values are not recommended for survey control.
MZ1473.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
MZ1473.See file dsdata.txt to determine how the superseded data were derived.
MZ1473
MZ1473_MARKER: H = DRILL HOLE
MZ1473_SETTING: 66 = SET IN ROCK OUTCROP
MZ1473_MAGNETIC: I = MARKER IS A STEEL ROD
MZ1473_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
MZ1473_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
MZ1473+SATELLITE: SATELLITE OBSERVATIONS - June 24, 1992
MZ1473
MZ1473  HISTORY     - Date     Condition        Recov. By
MZ1473  HISTORY     - 1860     MONUMENTED       CGS
MZ1473  HISTORY     - 1896     GOOD             CGS
MZ1473  HISTORY     - 1932     GOOD             CGS
MZ1473  HISTORY     - 1937     GOOD             NHGS
MZ1473  HISTORY     - 1957     GOOD             CGS
MZ1473  HISTORY     - 1959     GOOD             CGS
MZ1473  HISTORY     - 19891001 GOOD             NHDOT
MZ1473  HISTORY     - 19920624 GOOD
MZ1473
MZ1473                          STATION DESCRIPTION
MZ1473
MZ1473''DESCRIBED BY COAST AND GEODETIC SURVEY 1896
MZ1473''STATION IS ON THE HIGHEST PART OF MONADNOCK MOUNTAIN, WHICH
MZ1473''IS IN THE TOWNS OF JAFFREY, DUBLIN AND MARLBORO.  THE STATION
MZ1473''IS ON A COMPARATIVELY LEVEL ROCK, WITH A HIGHER ROCK TO THE
MZ1473''N.  IT IS MARKED BY A DRILL HOLE IN A ROCK.  THERE IS A DRILL HOLE
MZ1473''BESIDE THE ONE WHICH MARKS THE STATION OPENING INTO IT AND
MZ1473''ANOTHER 7/8 INCH DISTANT, WITH AN IRON BOLT IN IT.  THERE
MZ1473''ARE 5 LINES CUT IN THE ROCK RADIATING FROM THE CENTER HOLE.
MZ1473''
MZ1473''FIVE REFERENCE MARKS, DRILL HOLES IN ROCKS WITH SQUARES
MZ1473''AROUND THEM AND WITH ARROWS POINTING TO THE STATION, ARE
MZ1473''LOCATED AS FOLLOWS--NO. 1 DISTANT 11.52 METERS (38.80 FEET),
MZ1473''N 4 DEG 21 MIN E.  NO. 2 DISTANT 10.78 METERS (35.37 FEET),
MZ1473''N 32 DEG 59 MIN E.  NO. 3 DISTANT 5.12 METERS (16.80 FEET),
MZ1473''S 10 DEG 53 MIN W.  NO. 5 DISTANT 5.43 METERS (17.81
MZ1473''FEET), N 87 DEG 50 MIN W.  THE BORDEN STATION IS 10.31
MZ1473''METERS (33.83 FEET) DISTANT, N 8 DEG W.
MZ1473
MZ1473                          STATION RECOVERY (1932)
MZ1473
MZ1473''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1932 (HSS)
MZ1473''STATION MAY BE REACHED FROM
MZ1473''THE HIGHWAY BETWEEN JAFFREY AND TROY.  AT A POINT ABOUT S
MZ1473''OF THE MOUNTAIN A PRIVATE TOLL ROAD RUNS N ABOUT 1.3 MILES TO
MZ1473''A SMALL HOTEL, CALLED THE HALF WAY HOUSE, AND FROM THERE A
MZ1473''STEEP AND ROCKY, BUT MUCH USED TRAIL LEADS TO THE SUMMIT,
MZ1473''THE ASCENT REQUIRING ABOUT 3/4 HOUR.  THERE ARE SEVERAL OTHER
MZ1473''TRAILS ON THE MOUNTAIN.  THE UPPER PART OF THE MOUNTAIN
MZ1473''CONSISTS OF BARE LEDGES AND THE SUMMIT IS RATHER SHARPLY
MZ1473''POINTED.
MZ1473''
MZ1473''THE STATION IS MARKED AS DESCRIBED AND I HAD NO DIFFICULTY
MZ1473''IN IT WHEN I VISITED THE MOUNTAIN IN 1932.  THE TRIANGLE AND 5
MZ1473''RADIAL LINES ARE STILL DISTINCT, ALTHOUGH NOT DEEPLY CUT IN
MZ1473''THE LEDGE.  THE TRIANGLE, WHICH IS LARGE, APPEARS TO BE CENTERED
MZ1473''ON THE HOLE (ONE OF 3 WITHIN THE TRIANGLE) WHICH IS DESCRIBED
MZ1473''AS BEING THE STATION POINT.  I FOUND MANY DRILL HOLES, OF
MZ1473''VARIOUS SIZES, ON THE SUMMIT, SEVERAL OF THEM BEING WITHIN A FEW
MZ1473''FEET OF THE STATION, BUT, I FAILED TO IDENTIFY ANY OF
MZ1473''THEM, IN A HASTY SEARCH, AS BEING THE REFERENCE MARKS
MZ1473''MENTIONED IN THE DESCRIPTION, ALTHOUGH SOME OF THEM MAY
MZ1473''STILL EXIST.  A U.S.G.S. DISK, UNSTAMPED, IS CEMENTED IN
MZ1473''THE LEDGE AT A DISTANCE OF 1.04 FEET IN A SOUTHWESTERLY
MZ1473''DIRECTION FROM THE STATION.  IT WAS SET BY MR. C.B. KENDALL
MZ1473''IN 1931.
MZ1473''
MZ1473''NEAR THE STATION IS A FIRE LOOKOUT CABIN, CONSISTING OF A
MZ1473''MASONRY WALL SURMOUNTED BY SEVERAL WINDOWS ON A LOW ROOF.  THE
MZ1473''STATION IS ABOUT 5 FEET N OF THE NE CORNER OF THE CABIN.  THE VIEW
MZ1473''FROM THE SUMMIT IS UNOBSTRUCTED IN ALL DIRECTIONS.  A LARGE
MZ1473''PART OF THE MOUNTAIN IS IN PUBLIC OWNERSHIP, THE SUMMIT
MZ1473''BEING OWNED BY EITHER THE TOWN OF JAFFREY, OR THE SOCIETY FOR
MZ1473''THE PROTECTION OF NEW HAMPSHIRE FORESTS, THERE BEING SOME
MZ1473''UNCERTAINTY AS TO THE POSITION OF THE BOUNDARY LINE.
MZ1473''
MZ1473''I FOUND A DRILL HOLE WHICH I TOOK TO BE THE BORDEN STATION,
MZ1473''MENTIONED IN THE DESCRIPTION, THE DISTANCE AND AZIMUTH AGREEING
MZ1473''WITH THOSE GIVEN.  THE HOLE HAS A CONICAL OPENING, WHICH
MZ1473''SUGGESTED THAT THE ROCK HAD BEEN CHIPPED AWAY BY SOMEONE
MZ1473''WHO MAY HAVE REMOVED THE COPPER BOLT WHICH DOUBTLESS ORIGINALLY
MZ1473''WAS IN THE HOLE.
MZ1473''
MZ1473''NOTE--THIS STATION IS DATED 1860 BUT 1861 IS GIVEN IN THE ORIGINAL
MZ1473''DESCRIPTION AND ON THE SKETCHES IN THE ANNUAL REPORTS.
MZ1473
MZ1473                          STATION RECOVERY (1937)
MZ1473
MZ1473''RECOVERY NOTE BY NEW HAMPSHIRE GEODETIC SURVEY 1937
MZ1473''DRILL HOLE, WITH LARGER DRILL HOLE OPENING INTO IT, ENCLOSED
MZ1473''IN A LARGE TRIANGLE IN A FAIRLY LEVEL ROCK, S OF A HIGHER
MZ1473''ROCK, AND 5.5 FEET N OF NE CORNER OF STONE FIRE LOOKOUT CABIN,
MZ1473''ON THE HIGHEST PART OF MT. MONADNOCK, IN JAFFREY.  THE MOUNTAIN
MZ1473''ALSO LIES PARTLY IN DUBLIN AND MARLBORO.  FIVE LINES CUT IN
MZ1473''THE ROCK RADIATE FROM THE STATION DRILL HOLE, AND THERE IS A
MZ1473''1/2-INCH IRON PIN 0.1 FOOT NE FROM IT.  A U.S.G.S. STANDARD
MZ1473''DISK, UNSTAMPED, SET IN LEDGE IS 1.04 FEET SW FROM STATION.
MZ1473''
MZ1473''REFERENCE MARKS--IN 1937, THE MASSACHUSETTS GEODETIC SURVEY
MZ1473''RECOVERED THE 5 ORIGINAL REFERENCE DRILL HOLES, WITHIN SQUARES,
MZ1473''WITH ARROWS, AND ESTABLISHED REFERENCE MARKS NOS. 6, 7 AND 8,
MZ1473''MARKED BY U.S.C. AND G.S. STANDARD REFERENCE DISKS SET IN
MZ1473''LEDGE.  MEASUREMENTS TO REFERENCE MARKS NOS. 2 AND 3 COULD NOT
MZ1473''BE CHECKED BECAUSE OF OBSTRUCTION BY FIRE LOOKOUT CABIN, BUT
MZ1473''THESE TWO MARKS WERE LOCATED FROM REFERENCE MARK NO. 7, AS
MZ1473''GIVEN BELOW.  THE 6 OTHER REFERENCE MARKS ARE LOCATED FROM
MZ1473''STATION, AS FOLLOWS--ALL DISTANCES AND AZIMUTHS ADJUSTED--
MZ1473''
MZ1473''STATION TO SE CORNER FIRE LOOKOUT CABIN, 15.2 FEET.  TO NE
MZ1473''CORNER, 5.5 FEET.  TO NW CORNER, 15.3 FEET.
MZ1473''
MZ1473''FROM MONADNOCK R.M. NO. 7, 1937, REFERENCE MARK NO. 3 IS 23.54
MZ1473''FEET, IN GEODETIC AZIMUTH 327 DEG 24 MIN 39 SEC.  REFERENCE
MZ1473''MARK NO. 2 IS 48.55 FEET, IN GEODETIC AZIMUTH 348 DEG 45 MIN
MZ1473''04 SEC.  TO NE CORNER FIRE LOOKOUT CABIN, 35.5 FEET.  NW
MZ1473''CORNER, 23.8 FEET.  SW CORNER, 31.0 FEET.
MZ1473''
MZ1473''FIVE 1/2-INCH DRILL HOLES WERE FOUND IN THE LEDGE IN THE NW
MZ1473''QUADRANT, AT FOLLOWING DISTANCES FROM THE STATION, PROCEEDING
MZ1473''FROM W TOWARD N.  2.00 FEET, 1.77 FEET, 1.96 FEET, 1.98 FEET, 1.15
MZ1473''FEET.
MZ1473''
MZ1473''A 10-FOOT TOWER WAS USED IN 1937 FOR THE NORTHERN ARC
MZ1473''TRIANGULATION, AND AFFORDED A CLEAR VIEW IN ALL DIRECTIONS.
MZ1473''
MZ1473''TO REACH THE STATION FROM JAFFREY, FOLLOW ROAD TO MARLBORO
MZ1473''WESTERLY FOR ABOUT 5 MILES TO ITS HIGHEST POINT.  TURN RIGHT
MZ1473''AND FOLLOW PRIVATE TOLL ROAD NORTHERLY FOR 1.3 MILES TO
MZ1473''HALF WAY HOUSE.  FROM THERE, THE WELL-MARKED WHITE ARROW
MZ1473''TRAIL LEADS TO THE SUMMIT, ABOUT A 3/4 HOUR STEEP CLIMB.
MZ1473
MZ1473                          STATION RECOVERY (1957)
MZ1473
MZ1473''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1957 (JBW)
MZ1473''THE STATION WAS RECOVERED AND THE STATION MARK AND FIVE
MZ1473''ORIGINAL REFERENCE MARKS, MARKED BY DRILL HOLES IN ROCK,
MZ1473''WERE FOUND AS DESCRIBED.  REFERENCE MARKS 6 AND 7, MARKED
MZ1473''BY STANDARD REFERENCE DISKS SET IN BEDROCK, WERE FOUND
MZ1473''IN GOOD CONDITION.  THE DISK HAD BEEN REMOVED FROM REFERENCE MARK
MZ1473''8.  A CHECK OF THE DISTANCES AND DIRECTIONS TO REFERENCE MARKS
MZ1473''6 AND 7 SHOWED THE DISTANCES TO BE CORRECT BUT A DIFFERENCE OF
MZ1473''3 FT WAS FOUND IN THE DIRECTIONS.  THE OLD DESCRIPTION IS
MZ1473''ADEQUATE.
MZ1473
MZ1473                          STATION RECOVERY (1959)
MZ1473
MZ1473''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (HRL)
MZ1473''THE STATION IS LOCATED ABOUT 35 MILES WEST SOUTHWEST OF
MZ1473''MANCHESTER, 33 MILES WEST NORTHWEST OF NASHUA, 3 MILES NORTH
MZ1473''NORTHWEST OF JAFFREY AND ON THE HIGHEST PART OF MONADNOCK
MZ1473''MOUNTAIN.  IT IS 5 FEET NORTH OF THE NORTHEAST CORNER OF A
MZ1473''SMALL LOW ROOF CABIN AND 10 FEET SOUTH OF THE HIGHEST POINT OF
MZ1473''MOUNTAIN.  THE STATION MARK IS A DRILL HOLE IN BEDROCK THAT HAS
MZ1473''5 LINES CHISELED IN BEDROCK THAT INTERSECT THE CENTER OF HOLE.
MZ1473''
MZ1473''TO REACH THE STATION FROM THE JUNCTION OF U.S. HIGHWAY 202
MZ1473''AND STATE HIGHWAY 124 IN JEFFREY, GO WESTERLY ON STATE HIGHWAY
MZ1473''124 FOR 5.1 MILES TO A SIDE ROAD RIGHT AND SIGN TOLL ROAD, HALF
MZ1473''WAY HOUSE.  TURN RIGHT AND GO NORTHERLY ON TOLL ROAD FOR 1.3
MZ1473''MILES TO CABINS AND END OF TRUCK TRAVEL.  FROM END OF TRUCK
MZ1473''TRAVEL FOLLOW FOOT TRAIL TO LEFT OF CABIN AND THEN NORTHERLY UP
MZ1473''MOUNTAIN TO CABIN AT TOP OF MOUNTAIN AND STATION.  (THE TRAIL
MZ1473''WAS MARKED WITH WHITE ARROWS ON ROCK AT THE TIME THE
MZ1473''STATION WAS OCCUPIED.)
MZ1473''
MZ1473''REFERENCE MARK NO. 6 IS SET IN A DRILL HOLE IN BEDROCK ON THE
MZ1473''SOUTHWEST EDGE OF SUMMIT AND IS STAMPED MONADNOCK 6 1861.
MZ1473''
MZ1473''REFERENCE MARK NO. 7 IS SET IN A DRILL HOLE IN BEDROCK AND IS
MZ1473''STAMPED MONADNOCK 7 1861.
MZ1473''
MZ1473''REFERENCE MARK NO. 8 IS SET IN A DRILL HOLE IN BEDROCK AND IS
MZ1473''STAMPED MONADNOCK NO 8 1860 1959.
MZ1473''
MZ1473''A STANDARD USGS DISK IS SET IN A DRILL HOLE IN BEDROCK
MZ1473''SOUTHWEST OF THE STATION MARK 1.04 FEET 0.317 METERS WITH NO
MZ1473''STAMPING ON DISK.
MZ1473''
MZ1473''HEIGHT OF LIGHT ABOVE STATION MARK - 1 METER.
MZ1473
MZ1473                          STATION RECOVERY (1989)
MZ1473
MZ1473''RECOVERY NOTE BY NH DEPT OF TRANSP 1989
MZ1473''THE STATION IS LOCATED IN JAFFREY, 16.5 KM (10.25 MI) SOUTHEAST OF
MZ1473''KEENE, 13.5 KM (8.40 MI) WEST OF PETERBOROUGH, 4.5 KM (2.80 MI)
MZ1473''NORTHWEST OF JAFFREY CENTER, ON THE SUMMIT OF MONADNOCK MOUNTAIN.
MZ1473''TO REACH THE STATION FROM THE JUNCTION OF STATE ROUTES 202 AND 124 IN
MZ1473''JAFFREY, GO WEST FOR 3.4 KM (2.10 MI) ON ROUTE 124 TO A ROAD ON THE
MZ1473''RIGHT TO MONADNOCK STATE PARK.  TURN RIGHT AND GO NORTH FOR 2.1 KM
MZ1473''(1.30 MI) ON THE ROAD TO POOLE ROAD ON THE LEFT.  TURN LEFT AND GO
MZ1473''WEST FOR 1.2 KM (0.75 MI) ON POOLE ROAD TO A PARKING AREA AND THE END
MZ1473''OF TRUCK TRAVEL.  PACK ALONG THE WELL-MARKED TRAIL FOR 1 AND 3/4
MZ1473''HOURS TO THE TOP OF MONADNOCK MOUNTAIN AND THE STATION AT THE HIGHEST
MZ1473''POINT.
MZ1473''THE STATION IS A DRILL HOLE IN BEDROCK FROM WHICH 5 CHISELED LINES
MZ1473''RADIATE, 0.317 M (1.040 FT) NORTHEAST FROM AN UNSTAMPED USGS BENCH
MZ1473''MARK DISK.
MZ1473''REFERENCE MARK 6 IS A STANDARD USGS DISK 26.60 FT (8.11 M) SOUTH FROM
MZ1473''THE STATION.
MZ1473''REFERENCE MARK 7 IS A STANDARD USGS DISK 33.76 FT (10.29 M) NORTHWEST
MZ1473''FROM THE STATION.
MZ1473''REFERENCE MARK 8 IS A STANDARD USGS DISK 19.11 FT (5.82 M) EAST FROM
MZ1473''THE STATION.
MZ1473
MZ1473                          STATION RECOVERY (1992)
MZ1473
MZ1473''RECOVERED 1992
MZ1473''RECOVERED IN GOOD CONDITION.