National Geodetic Survey, Retrieval Date = DECEMBER 5, 2002 DT0733 *********************************************************************** DT0733 DESIGNATION - BIG LAKE DT0733 PID - DT0733 DT0733 STATE/COUNTY- AZ/APACHE DT0733 USGS QUAD - BIG LAKE SOUTH (1991) DT0733 DT0733 *CURRENT SURVEY CONTROL DT0733 ___________________________________________________________________ DT0733* NAD 83(1992)- 33 51 44.03284(N) 109 23 29.21827(W) ADJUSTED DT0733* NAVD 88 - 2872.1 (meters) 9423. (feet) VERTCON DT0733 ___________________________________________________________________ DT0733 LAPLACE CORR- 0.25 (seconds) DEFLEC99 DT0733 GEOID HEIGHT- -22.40 (meters) GEOID99 DT0733 DT0733 HORZ ORDER - SECOND DT0733 DT0733.The horizontal coordinates were established by classical geodetic methods DT0733.and adjusted by the National Geodetic Survey in August 1993. DT0733 DT0733.The NAVD 88 height was computed by applying the VERTCON shift value to DT0733.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) DT0733 DT0733.The Laplace correction was computed from DEFLEC99 derived deflections. DT0733 DT0733.The geoid height was determined by GEOID99. DT0733 DT0733; North East Units Scale Converg. DT0733;SPC AZ E - 317,644.305 285,087.346 MT 0.99996340 +0 25 55.1 DT0733;UTM 12 - 3,748,044.605 648,793.001 MT 0.99987293 +0 53 47.2 DT0733 DT0733: Primary Azimuth Mark Grid Az DT0733:SPC AZ E - BIG LAKE AZ MK 346 26 21.6 DT0733:UTM 12 - BIG LAKE AZ MK 345 58 29.5 DT0733 DT0733|---------------------------------------------------------------------| DT0733| PID Reference Object Distance Geod. Az | DT0733| dddmmss.s | DT0733| DT0732 BIG LAKE LOOKOUT TOWER 21.150 METERS 09737 | DT0733| DT0731 BIG LAKE 20.555 METERS 10157 | DT0733| CD1625 BIG LAKE RM 2 6.111 METERS 18608 | DT0733| CD1624 BIG LAKE AZ MK 3465216.7 | DT0733|---------------------------------------------------------------------| DT0733 DT0733 SUPERSEDED SURVEY CONTROL DT0733 DT0733 NAD 83(1986)- 33 51 44.03207(N) 109 23 29.22266(W) AD( ) 2 DT0733 NAD 27 - 33 51 43.85420(N) 109 23 26.91280(W) AD( ) 2 DT0733 NGVD 29 - 2870.9 (m) 9419. (f) VERT ANG DT0733 DT0733.Superseded values are not recommended for survey control. DT0733.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. DT0733.See file dsdata.txt to determine how the superseded data were derived. DT0733 DT0733_U.S. NATIONAL GRID SPATIAL ADDRESS: 12SXC4879348045(NAD 83) DT0733_MARKER: DS = TRIANGULATION STATION DISK DT0733_SETTING: 0 = UNSPECIFIED SETTING DT0733 DT0733 HISTORY - Date Condition Report By DT0733 HISTORY - 1958 MONUMENTED CGS DT0733 HISTORY - 1967 GOOD AMS DT0733 HISTORY - 1967 GOOD CGS DT0733 DT0733 STATION DESCRIPTION DT0733 DT0733'DESCRIBED BY COAST AND GEODETIC SURVEY 1958 (CAA) DT0733'STATION IS LOCATED ABOUT 20 MILES SOUTH-SOUTHWEST OF SPRINGERVILLE, DT0733'12 MILES NORTHEAST OF MAVERICK, ON THE SAME HILL AS BIG LAKE DT0733'LOOKOUT TOWER IN THE APACHE NATIONAL FOREST. IT IS A STANDARD DT0733'DISC BRAZED TO THE TOP OF A 1-1/2 INCH GALVANIZED PIPE WHICH DT0733'PROJECTS 14 INCHES, 15 FEET EAST OF THE WEST EDGE OF CLIFF, DT0733'10 FEET SOUTH OF NORTH EDGE OF CLIFF, 4 FEET LOWER THAN THE DT0733'HIGHEST POINT AND IS STAMPED BIG LAKE 1958. DT0733' DT0733'A GEOLOGICAL SURVEY BENCH MARK, NO STAMPING, WAS USED AS DT0733'REFERENCE MARK NUMBER 1. IT IS A STANDARD DISC SET IN A DRILL DT0733'HOLE IN AN IRREGULAR SHAPED BOULDER UNDER THE LOOKOUT TOWER, DT0733'IT PROJECTS ABOUT 3 FEET AND IS 6 FEET NORTHWEST OF THE DT0733'SOUTHEAST LEG OF THE TOWER. DT0733' DT0733'REFERENCE MARK NO. 2 IS A STANDARD DISC SET IN A DRILL HOLE DT0733'IN CAP ROCK WHICH IS ABOUT 5 FEET LOWER THAN THE STATION. DT0733'IT IS A ROUND SHAPED ROCK ABOUT 6 FEET IN DIAMETER, SEPERATED DT0733'FROM THE MAIN RIDGE AND FORMS PART OF A 20 FOOT CLIFF. IT DT0733'IS STAMPED BIG LAKE NO 2 1958. DT0733' DT0733'AZIMUTH MARK IS A STANDARD DISC SET IN A DRILL HOLE IN A BOULDER DT0733'WHICH PROJECTS 3 INCHES. IT IS 240 FEET WEST OF BIG LAKE DT0733'ROAD, 75 FEET NORTH OF CONCLIN RIDGE ROAD, 4 FEET SOUTH OF DT0733'A WITNESS POST AND IS STAMPED BIG LAKE 1958. DT0733' DT0733'TO REACH FROM THE POST OFFICE IN MC NARY, GO NORTH FOR 1 BLOCK DT0733'TO STATE HIGHWAY 73, TURN RIGHT, EAST, ON HIGHWAY 73 AND DT0733'GO 17.15 MILES TO A T ROAD RIGHT, STATE HIGHWAY 273, TURN DT0733'RIGHT AND GO SOUTH ON GRADED ROAD FOR 8.5 MILES TO A FORKS DT0733'AT SHEEP CROSSING, KEEP LEFT AND GO SOUTHERLY FOR 4.8 MILES DT0733'TO A FORK AND SIGN, MAVERICK 21, KEEP LEFT FORK AND GO 2.35 DT0733'MILES TO A FORK, TAKE RIGHT FORK AND GO 2.45 MILES TO A T ROAD DT0733'RIGHT, KEEP LEFT STRAIGHT AHEAD AND GO 0.65 MILE TO A FORK, DT0733'SIGN, CONCLIN RIDGE ROAD, THE AZIMUTH IS TO THE RIGHT AS DT0733'DESCRIBED, KEEP LEFT STRAIGHT AHEAD FOR 0.7 MILE TO A T DT0733'JUNCTION, TURN RIGHT AT SIGN, BUFFALO CROSSING 10, AND GO DT0733'0.15 MILE TO LOGGING ROAD, CROSS LOGGING ROAD AND GO SOUTH DT0733'FOR 0.25 MILE TO A T ROAD LEFT, CONTINUE STRAIGHT AHEAD DT0733'SOUTH FOR 0.6 MILE TO A FORK AND SIGN, BIG LAKE L.O., TAKE DT0733'RIGHT FORK AND GO 0.15 MILE TO A FORK, TAKE RIGHT FORK DT0733'AND GO 1.1 MILE TO END OF TRUCK TRAVEL. PACK UP STEPS TO DT0733'TOWER, THENCE WEST OUT RIDGE ABOUT 25 YARDS TO STATION AS DT0733'DESCRIBED. DT0733 DT0733 STATION RECOVERY (1967) DT0733 DT0733'RECOVERY NOTE BY US ARMY MAP SERVICE (NOW DMA) 1967 DT0733'STATION BIG LAKE IS LOCATED APPROXIMATELY 12.0 AIRMILES (NE) DT0733'OF MAVERICK AND APPROXIMATELY 28.5 AIRMILES (SE) OF MC NARY, DT0733'ARIZONA. DT0733' DT0733'TO REACH FROM POST OFFICE IN MC NARY GO (N) FOR ONE BLOCK TO DT0733'JCT. TURN RIGHT (E) ON HWY 73 AND GO 17.1 MI TO JCT OF HWY DT0733'73 AND 273, TURN RIGHT (S), FOLLOW HWY 273 FOR 19.2 MI TO A DT0733'FORK AND SIGN CONKLIN RIDGE RD AND AZIMUTH MARK, CONTINUE DT0733'STRAIGHT ON HWY 273 FOR 0.8 MI TO JCT AND A SIGN SPRINGERVILLE DT0733'23, BUFFALO CROSSING 10, AT THIS POINT TURN RIGHT (W) LEAVING DT0733'HWY 273 AND GO 0.4 MI TO ROAD ON LEFT AND SIGN THREE FORKS, DT0733'ALPINE, CONTINUE STRAIGHT FOR 0.6 MI TO A Y AND SIGN BIG LAKE DT0733'LOOKOUT, TURN RIGHT (SW) AND GO 0.1 MI TO A SECOND Y AND SIGN DT0733'BIG LAKE LOOKOUT, TURN RIGHT (W) AND GO 1.2 MI TO END OF DT0733'TRUCK TRAVEL. PACK UP STEPS TO LOOKOUT TOWER AND THEN (W) DT0733'FOR APPROXIMATELY 20M TO STATION SITE. PACK TIME 2 MIN. DT0733' DT0733'THE STATION IS LOCATED AT THE (W) END OF A BRUSHY E-W RIDGE DT0733'WITH LOOKOUT TOWER ON THE EAST END. DT0733' DT0733'THE STATION IS A STANDARD USC AND GS TRIANGULATION STATION DT0733'BRONZE DISK BRAZED TO THE TOP OF A 1-1/2 GALVANIZED PIPE DT0733'PROTRUDING 14 IN AND STAMPED BIG LAKE 1958. DT0733' DT0733'A GEOLOGICAL SURVEY BM WITH NO STAMPING WAS USED AS RM 1. DT0733'IT IS CEMENTED IN A LARGE BOULDER PROTRUDING 3 FT AND IS DT0733'LOCATED NEAR THE (SW) LEG OF THE LOOKOUT TOWER. FROM DT0733'THE STATION IT IS (E) ON A MAG AZ OF 101 DEG AT A DISTANCE DT0733'OF 20.560M AND A DE OF -0.12M. DT0733' DT0733'R.M. 2 IS A STANDARD USC AND GS R.M. DISK CEMENTED IN A DT0733'LARGE BOULDER APART FROM THE MAIN RIDGE AND STAMPED BIG LAKE DT0733'NO 2 1958. FROM THE STATION IT IS (S) ON A NAG AZ OF 186 DEG DT0733'AT A DISTANCE OF 6.125M AND A DE OF -2.08M. DT0733' DT0733'AZ MK IS LOCATED AT THE INTERSECTION OF HWY 273 AND CONKLIN DT0733'RIDGE RD. IT IS LOCATED 240 FT (W) OF HWY 273 (BIG LAKE RD) DT0733 DT0733 STATION RECOVERY (1967) DT0733 DT0733'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1967 (KFB) DT0733'THE STATION MARK, REFERENCE MARK NUMBER 1, REFERENCE MARK DT0733'NUMBER 2 AND THE AZIMUTH MARK WERE RECOVERED AND FOUND IN DT0733'GOOD CONDITION. DT0733' DT0733'THE 1958 DESCRIPTION TO REACH THE STATION IS ADEQUATE. DT0733' DT0733'AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--20 MILES DT0733'SOUTH-SOUTHWEST OF SPRINGERVILLE, 12 MILES NORTH-NORTHEAST OF DT0733'MAVERICK AND ON THE SAME HILL AS THE BIG LAKE LOOKOUT TOWER.