National Geodetic Survey, Retrieval Date = MARCH 18, 2001 CX1816 *********************************************************************** CX1816 CBN - This is a Cooperative Base Network Control Station. CX1816 DESIGNATION - FLAT TOP CX1816 PID - CX1816 CX1816 STATE/COUNTY- NM/DONA ANA CX1816 USGS QUAD - MAGDALENA PEAK (1985) CX1816 CX1816 *CURRENT SURVEY CONTROL CX1816 ___________________________________________________________________ CX1816* NAD 83(1992)- 32 29 29.37131(N) 107 10 00.20072(W) ADJUSTED CX1816* NAVD 88 - 2020.1 (meters) 6628. (feet) GPS OBS CX1816 ___________________________________________________________________ CX1816 X - -1,589,890.422 (meters) COMP CX1816 Y - -5,146,686.094 (meters) COMP CX1816 Z - 3,407,599.584 (meters) COMP CX1816 LAPLACE CORR- -0.41 (seconds) DEFLEC99 CX1816 ELLIP HEIGHT- 1995.98 (meters) GPS OBS CX1816 GEOID HEIGHT- -23.72 (meters) GEOID99 CX1816 CX1816 HORZ ORDER - B CX1816 ELLP ORDER - FOURTH CLASS I CX1816 CX1816.The horizontal coordinates were established by GPS observations CX1816.and adjusted by the National Geodetic Survey in May 1992. CX1816 CX1816.The orthometric height was determined by GPS observations and a CX1816.high-resolution geoid model. CX1816 CX1816.The X, Y, and Z were computed from the position and the ellipsoidal ht. CX1816 CX1816.The Laplace correction was computed from DEFLEC99 derived deflections. CX1816 CX1816.The ellipsoidal height was determined by GPS observations CX1816.and is referenced to NAD 83. CX1816 CX1816.The geoid height was determined by GEOID99. CX1816 CX1816; North East Units Scale Converg. CX1816;SPC NM C - 165,733.918 413,848.336 MT 0.99999149 -0 29 32.9 CX1816;UTM 13 - 3,596,984.362 296,420.055 MT 1.00011109 -1 09 51.5 CX1816 CX1816: Primary Azimuth Mark Grid Az CX1816:SPC NM C - FLAT TOP AZ MK 227 29 35.6 CX1816:UTM 13 - FLAT TOP AZ MK 228 09 54.2 CX1816 CX1816|---------------------------------------------------------------------| CX1816| PID Reference Object Distance Geod. Az | CX1816| dddmmss.s | CX1816| FLAT TOP RM 1 10.070 METERS 17728 | CX1816| FLAT TOP AZ MK 2270002.7 | CX1816| FLAT TOP RM 2 13.388 METERS 26751 | CX1816|---------------------------------------------------------------------| CX1816 CX1816 SUPERSEDED SURVEY CONTROL CX1816 CX1816 NAD 83(1986)- 32 29 29.37625(N) 107 10 00.20873(W) AD( ) 1 CX1816 NAD 27 - 32 29 29.06803(N) 107 09 58.14243(W) AD( ) 1 CX1816 NGVD 29 - 2019.3 (m) 6625. (f) GPS OBS CX1816 CX1816.Superseded values are not recommended for survey control. CX1816.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. CX1816.See file dsdata.txt to determine how the superseded data were derived. CX1816 CX1816_MARKER: DH = HORIZONTAL CONTROL DISK CX1816_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT CX1816_STAMPING: FLAT TOP 1954 CX1816_MAGNETIC: N = NO MAGNETIC MATERIAL CX1816_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL CX1816_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR CX1816+SATELLITE: SATELLITE OBSERVATIONS - May 10, 1991 CX1816 CX1816 HISTORY - Date Condition Recov. By CX1816 HISTORY - 1934 MONUMENTED CGS CX1816 HISTORY - 1936 GOOD CGS CX1816 HISTORY - 1957 GOOD USGS CX1816 HISTORY - 1973 GOOD NGS CX1816 HISTORY - 1976 GOOD USGS CX1816 HISTORY - 1988 GOOD NGS CX1816 HISTORY - 19910510 GOOD NM0470 CX1816 CX1816 STATION DESCRIPTION CX1816 CX1816'DESCRIBED BY COAST AND GEODETIC SURVEY 1936 CX1816'THE STATION IS ABOUT 26 MILES NORTHWEST OF LAS CRUCES, 11.5 CX1816'MILES SOUTH OF HATCH, ON A FLAT-TOPPED PEAK, THE HIGHEST OF A CX1816'GROUP, LOCALLY KNOWN AS CERRO MAGDALENA. THE PEAK SLOPES CX1816'OFF TO THE NORTH, EAST, AND WEST, DROPPING OFF ABRUPTLY TO CX1816'THE SOUTH, AND THE MARK IS 54 FEET NORTH OF THE SOUTH EDGE, 47 CX1816'FEET EAST OF THE WEST EDGE, AND ABOUT 40 FEET NORTHWEST OF CX1816'THE SOUTHEAST EDGE. THE STATION, AZIMUTH, AND REFERENCE MARKS CX1816'ARE STANDARD DISKS SET IN BEDROCK. CX1816'REFERENCE MARK NO. 1 IS 21 FEET NORTH OF THE SOUTH EDGE CX1816'OF THE PEAK AND 10.070 METERS (33.04 FEET) FROM THE STATION CX1816'S 02 DEG 32 MIN E, AND NO. 2 IS 10 FEET EAST OF THE CX1816'WEST EDGE OF THE PEAK, 13.388 METERS (43.92 FEET) FROM CX1816'THE STATION S 87 DEG 51 MIN W. THE AZIMUTH MARK IS 42 FEET CX1816'WEST OF A TRACK ROAD, 8 FEET EAST OF A BOTTOM OF A WASH, CX1816'AND APPROXIMATELY 2 MILES FROM THE STATION S 47 DEG 00 MIN W. CX1816 CX1816 STATION RECOVERY (1957) CX1816 CX1816'RECOVERY NOTE BY US GEOLOGICAL SURVEY 1957 (ATW) CX1816'RECOVERED AND REDESCRIBED AS FOLLOWS CX1816' CX1816'LOCATED ABOUT 12.0 MI. (AIRLINE) SW. OF HATCH, NEW MEXICO, AND CX1816'ABOUT 13.0 MI. (AIRLINE) W. OF RADIUM SPRINGS, NEW MEXICO. ON TOP CX1816'OF HIGH FLAT TOP KNOWN LOCALLY AS MAGDALENA MOUNTAIN. CX1816' CX1816'TO REACH FROM INTERSECTION OF U.S. HIGHWAY NO. 85 AND STATE HIGHWAY CX1816'NO. 26 AT HATCH, NEW MEXICO, GO W. ON STATE HIGHWAY NO. 26 7.6 MI. CX1816'TO A GRADED RD. S., TURN LEFT ON GRADED RD. 2.5 MI. TO TRACK RD., CX1816'SW., TURN RIGHT ON TRACK RD. GO 0.3 MI. TO DIM CROSS RD., TURN RIGHT CX1816'GO 8.8 MI. ON MAIN TRAVELED TRACK RD. IN SWS. DIRECTION TO RANCH CX1816'HOUSE, TURN LEFT E., GO ABOUT 4.5 MI. TO END TRUCK TRAVEL, CONTINUE CX1816'WITH JEEP E. ALONG MAIN DRAIN ABOUT 6.0 MI., PASSING ONE EARTH TANK CX1816'AND A WINDMILL TO HEAD OF DRAIN AND A TANK, END OF JEEP TRAVEL. PACK CX1816'E. TO HIGH FLAT TOP AND STATION SITE. CX1816' CX1816'STATION MARK--STANDARD USC AND GS DISK SET IN BEDROCK. CX1816 CX1816 STATION RECOVERY (1973) CX1816 CX1816'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1973 (CWW) CX1816'THE STATION AND REFERENCE MARKS WERE FOUND IN GOOD CONDITION. CX1816'THE AZIMUTH MARK WAS NOT SEARCHED FOR. CX1816' CX1816'THE STATION IS LOCATED IN DONA ANA COUNTY ABOUT 26 MILES CX1816'NORTHWEST OF LAS CRUCES AND 12 MILES SOUTH OF HATCH. IT IS CX1816'NOW A DRIVE STATION WITH FOUR WHEEL DRIVE VEHICLE RECOMMENDED. CX1816' CX1816'TO REACH FROM THE INTERSECTION OF VALLY DRIVE (U.S. 85) AND CX1816'PICACHO AVE. (U.S. 70-80) IN NORTHWEST LAS CRUCES, GO WEST ON CX1816'PICACHO 5.7 MILES TO INTERSTATE 10. ENTER THE INTERSTATE AND CX1816'GO WEST 7.1 MILES TO THE CORRALITOS RANCH INTERCHANGE. LEAVE CX1816'THE INTERSTATE ON THE WESTBOUND OFF RAMP AND ENTER THE FRONTAGE CX1816'ROAD WHICH RUNS ALONG THE NORTH SIDE OF THE INTERSTATE. GO EAST CX1816'ON THE FRONTAGE ROAD 1.4 MILES TO A GATE WITH A LARGE OVERHEAD CX1816'SIGN CORROLITOS RANCH. TURN LEFT AND FOLLOW THE PAVED ROAD CX1816'10.8 MILES TO WHERE THE ROAD CURVES SHARPLY TO THE LEFT AND CX1816'LEADS TO A MICROWAVE STATION. AT THIS CURVE LEAVE THE PAVED CX1816'ROAD STRAIGHT AHEAD ON A DIRT ROAD 0.1 MILES TO A CATTLE CX1816'GUARD, GO 0.2 MILES TO A CURVE TURNING NORTH, GO NORTH 3.5 CX1816'MILES TO A FORK, TAKE LEFT FORD AND GO 0.2 MILES TO A CX1816'CATTLE GUARD, GO 0.6 MILES TO A CATTLE GUARD, GO 0.1 MILES CX1816'TO A CATTLE GUARD THEN 0.1 MILES TO A CROSS ROAD. GO CX1816'STRAIGHT AHEAD NORTHERLY 4.2 MILES TO A ROAD SIGN ON THE CX1816'RIGHT MARKED MAGDALENA PEAK 5. (THE ROAD WILL TURN LEFT CX1816'AND START CLIMBING AT THIS POINT). GO 0.8 MILES TO A CATTLE CX1816'GUARD, GO 1.3 MILES TO A CATTLE GUARD THEN 1.0 MILES TO A CX1816'T-INTERSECTION, TURN LEFT THROUGH A WIRE GATE MARKED WITH A CX1816'SIGN HAZARDOUS MOUNTAIN ROAD. FOLLOW THE ROAD UP THE SIDE CX1816'OF THE MESA THENCE SOUTH ALONG THE TOP OF THE MESA A TOTAL OF CX1816'1.9 MILES TO AN OBSERVATORY ON THE SOUTH TIP OF THE MESA. CX1816'DRIVE TO THE RIGHT OF THE OBSERVATORY ABOUT 100 FEET TO THE CX1816'STATION. THE STATION IS ABOUT 120 FEET NORTHWEST OF THE CX1816'OBSERVATORY AND ABOUT 90 FEET SOUTHWEST OF A SMALL METAL CX1816'BUILDING. CX1816' CX1816'AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--12.0 MILES CX1816'SOUTH OF HATCH CX1816 CX1816 STATION RECOVERY (1976) CX1816 CX1816'RECOVERY NOTE BY US GEOLOGICAL SURVEY 1976 (MAM) CX1816'CORRALITOS RANCH HEADQUARTERS. 7.4 MILES NORTHERLY AND WESTERLY CX1816'ALONG MACADAMIZED ROAD TO ROAD JUNCTION, THENCE 11.6 MILES CX1816'NORTHWESTERLY ALONG GRAVEL ROAD, THENCE 2.6 MILES SOUTHWESTERLY UP CX1816'STEEP HILLSIDE TO M AGDALENA PEAK AND BLUE MESA OBESERVATORY, CX1816'THENCE 112 FT. NORTHWEST OF WEST SIDE OF OBSERVATORY AND 99 FT. CX1816'SOUTHWEST OF SOUTHWEST CORNER OF CONCRETE BLOCK BUILDING. THE CX1816'STATION IS A STANDARD DISK SET IN BEDROCK STAMPED FLAT TOP 1934. CX1816' CX1816'DIRECTION AND DISTANCE ABOUT 26.0 MILES NORTHWEST OF LAS CRUCES. CX1816 CX1816 STATION RECOVERY (1988) CX1816 CX1816'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 (MRM) CX1816'THE STATION WAS RECOVERED AT THIS DATE. CX1816'NO OTHER MARKS WERE SEARCHED FOR AT THIS DATE. CX1816' CX1816'THE STATION IS LOCATED ABOUT 64.4 KM (40 MI) CX1816'NORTH-NORTHEAST OF DEMING, CX1816'37.0 KM (23 MI) NORTH-NORTHWEST OF LAS CRUCES AND CX1816'19.3 KM (12 MI) SOUTH OF HATCH. CX1816'OWNERSHIP--CORRALITOS RANCH, LAS CRUCES NM. CX1816' CX1816'TO REACH THE STATION FROM INTERSTATE HIGHWAY 10 EXIT 127, WHICH IS CX1816'LOCATED ABOUT 19.3 KM (12 MI) WEST OF LAS CRUCES, GO CX1816'EAST FOR 2.3 KM (1.4 MI) ON THE NORTH FRONTAGE ROAD TO A PAVED ROAD CX1816'LEFT AND OVERHEAD SIGN (CORRALITOS RANCH). CX1816'TURN LEFT AND GO NORTH FOR 17.7 KM (11.0 MI) ON COUNTY ROAD 9, CX1816'PASSING CORRALS AND HOUSE, TO A SHARP CURVE LEFT, LEADING TO A CX1816'MICROWAVE TOWER, AND A SIDE ROAD RIGHT. CX1816'TURN RIGHT AND GO 6.1 KM (3.8 MI) ON A DIRT ROAD TO A CX1816'FORK. FOLLOW THE LEFT FORK AND GO 1.8 KM (1.1 MI) ON THE MAIN DIRT CX1816'ROAD TO A DIM CROSSROAD. CONTINUE AHEAD FOR 6.8 KM (4.25 MI) ON THE CX1816'MAIN ROAD TO A SIGN (MAGDALENA PEAK 3 MI) ON THE RIGHT (NOTE, THE CX1816'ROAD WILL TURN LEFT AND START CLIMBING AT THIS POINT, 4-WHEEL DRIVE CX1816'IS REQUIRED FROM THIS POINT). CONTINUE AHEAD FOR 3.4 KM (2.1 MI) ON CX1816'THE MAIN DIRT ROAD TO A SIDE ROAD LEFT. TURN LEFT, PASS THROUGH CX1816'BARBED WIRE FENCE GATE WITH SIGN (HAZARDOUS MOUNTAIN ROAD), AND GO CX1816'UPHILL FOR 4.2 KM (2.6 MI) ON THE ROCK AND DIRT ROAD, ON SOUTH SIDE CX1816'OF MESA, TO THE TOP OF HILL AND AN OBSERVATORY ON LEFT, WHITE CX1816'CONCRETE BUILDING ON RIGHT (CONCRETE WALKWAY CONNECTING BUILDINGS). CX1816'CONTINUE AHEAD FOR 30 METERS (100 FT), CROSSING WALKWAY, TO THE CX1816'STATION, SURROUNDED BY A 0.6-METER HIGH ROCK RING. CX1816' CX1816'THE STATION IS A STANDARD CGS DISK CX1816'STAMPED---FLAT TOP 1934 6623---, CX1816'SET INTO A DRILL HOLE IN ROCK OUTCROP OF 1.0 METERS LARGEST CX1816'DIMENSION. LOCATED CX1816'36.1 METERS (118.6 FT) WEST FROM THE NORTH DOOR OF OBSERVATORY, CX1816'29.9 METERS (98.0 FT) SOUTH FROM THE SOUTHEAST CORNER OF THE WHITE CX1816'CONCRETE BLOCK BUILDING, CX1816'15.5 METERS (50.9 FT) EAST FROM THE WEST EDGE OF CLIFF AND CX1816'15.5 METERS (50.9 FT) NORTH FROM THE SOUTH EDGE OF CLIFF. CX1816' CX1816'NEW MEXICO FAA - FEBRUARY, 1988. CX1816' CX1816'THIS STATION SUITABLE FOR GPS SURVEYS. CX1816' CX1816'DESCRIBED BY R.W. MCALLISTER. CX1816 CX1816 STATION RECOVERY (1991) CX1816 CX1816'RECOVERY NOTE BY CITY OF LAS CRUCES NEW MEXICO 1991 CX1816'THE STATION IS LOCATED ABOUT 64.4 KM (40 MI) CX1816'NORTH-NORTHEAST OF DEMING, CX1816'37.0 KM (23 MI) NORTH-NORTHWEST OF LAS CRUCES AND CX1816'19.3 KM (12 MI) SOUTH OF HATCH. CX1816'OWNERSHIP--CORRALITOS RANCH, LAS CRUCES NM. CX1816'TO REACH THE STATION FROM INTERSTATE HIGHWAY 10 EXIT 127, WHICH IS CX1816'LOCATED ABOUT 19.3 KM (12 MI) WEST OF LAS CRUCES, GO CX1816'EAST FOR 2.3 KM (1.4 MI) ON THE NORTH FRONTAGE ROAD TO A PAVED ROAD CX1816'LEFT AND OVERHEAD SIGN (CORRALITOS RANCH). CX1816'TURN LEFT AND GO NORTH FOR 17.7 KM (11.0 MI) ON COUNTY ROAD 9, CX1816'PASSING CORRALS AND HOUSE, TO A SHARP CURVE LEFT, LEADING TO A CX1816'MICROWAVE TOWER, AND A SIDE ROAD RIGHT. CX1816'TURN RIGHT AND GO 6.1 KM (3.8 MI) ON A DIRT ROAD TO A CX1816'FORK. FOLLOW THE LEFT FORK AND GO 1.8 KM (1.1 MI) ON THE MAIN DIRT CX1816'ROAD TO A DIM CROSSROAD. CONTINUE AHEAD FOR 6.8 KM (4.25 MI) ON THE CX1816'MAIN ROAD TO A SIGN (MAGDALENA PEAK 3 MI) ON THE RIGHT (NOTE, THE CX1816'ROAD WILL TURN LEFT AND START CLIMBING AT THIS POINT, 4-WHEEL DRIVE CX1816'IS REQUIRED FROM THIS POINT). CONTINUE AHEAD FOR 3.4 KM (2.1 MI) ON CX1816'THE MAIN DIRT ROAD TO A SIDE ROAD LEFT. TURN LEFT, PASS THROUGH CX1816'BARBED WIRE FENCE GATE WITH SIGN (HAZARDOUS MOUNTAIN ROAD), AND GO CX1816'UPHILL FOR 4.2 KM (2.6 MI) ON THE ROCK AND DIRT ROAD, ON SOUTH SIDE CX1816'OF MESA, TO THE TOP OF HILL AND AN OBSERVATORY ON LEFT, WHITE CX1816'CONCRETE BUILDING ON RIGHT (CONCRETE WALKWAY CONNECTING BUILDINGS). CX1816'CONTINUE AHEAD FOR 30 METERS (100 FT), CROSSING WALKWAY, TO THE CX1816'STATION, SURROUNDED BY A 0.6-METER HIGH ROCK RING. CX1816'THE STATION IS A STANDARD CGS DISK CX1816'STAMPED---FLAT TOP 1934 6623---, CX1816'SET INTO A DRILL HOLE IN ROCK OUTCROP OF 1.0 METERS LARGEST CX1816'DIMENSION. LOCATED CX1816'36.1 METERS (118.6 FT) WEST FROM THE NORTH DOOR OF OBSERVATORY, CX1816'29.9 METERS (98.0 FT) SOUTH FROM THE SOUTHEAST CORNER OF THE WHITE CX1816'CONCRETE BLOCK BUILDING, CX1816'15.5 METERS (50.9 FT) EAST FROM THE WEST EDGE OF CLIFF AND CX1816'15.5 METERS (50.9 FT) NORTH FROM THE SOUTH EDGE OF CLIFF. CX1816'THIS STATION SUITABLE FOR GPS SURVEYS. CX1816'DESCRIBED BY R.W. MCALLISTER.