National Geodetic Survey, Retrieval Date = FEBRUARY 27, 2000 DX4949 *********************************************************************** DX4949 DESIGNATION - YSIDRO DX4949 PID - DX4949 DX4949 STATE/COUNTY- CA/SAN DIEGO DX4949 USGS QUAD - BORREGO PALM CANYON (1984) DX4949 DX4949 *CURRENT SURVEY CONTROL DX4949 ___________________________________________________________________ DX4949* NAD 83(1992)- 33 15 14.31697(N) 116 29 54.72892(W) ADJUSTED DX4949* NAVD 88 - 1875. (meters) 6152. (feet) SCALED DX4949 ___________________________________________________________________ DX4949 EPOCH DATE - 1991.35 DX4949 LAPLACE CORR- -7.72 (seconds) DEFLEC99 DX4949 GEOID HEIGHT- -31.72 (meters) GEOID99 DX4949 DX4949 HORZ ORDER - FIRST DX4949 DX4949.The horizontal coordinates were established by classical geodetic methods DX4949.and adjusted by the National Geodetic Survey in June 1996. DX4949.The horizontal coordinates are valid at the epoch date displayed above. DX4949.The epoch date for horizontal control is a decimal equivalence DX4949.of Year/Month/Day. DX4949 DX4949.The orthometric height was scaled from a topographic map. DX4949 DX4949.The Laplace correction was computed from DEFLEC99 derived deflections. DX4949 DX4949.The geoid height was determined by GEOID99. DX4949 DX4949; North East Units Scale Converg. DX4949;SPC CA 6 - 2,036,127.59 6,485,687.05 sFT 0.99995511 -0 08 11.7 DX4949;SPC CA 6 - 620,612.931 1,976,841.365 MT 0.99995511 -0 08 11.7 DX4949;UTM 11 - 3,679,555.515 546,710.261 MT 0.99962690 +0 16 29.9 DX4949 DX4949: Primary Azimuth Mark Grid Az DX4949:SPC CA 6 - YSIDRO AZ MK 220 51 59.4 DX4949:UTM 11 - YSIDRO AZ MK 220 27 17.8 DX4949 DX4949|---------------------------------------------------------------------| DX4949| PID Reference Object Distance Geod. Az | DX4949| dddmmss.s | DX4949| YSIDRO RM 1 9.085 METERS 17459 | DX4949| YSIDRO AZ MK 2204347.7 | DX4949| YSIDRO RM 2 7.312 METERS 25925 | DX4949|---------------------------------------------------------------------| DX4949 DX4949 SUPERSEDED SURVEY CONTROL DX4949 DX4949 NAD 83(1986)- 33 15 14.31812(N) 116 29 54.73180(W) AD(1984.00) 1 DX4949 NAD 27 - 33 15 14.17990(N) 116 29 51.67278(W) AD( ) 1 DX4949 DX4949.Superseded values are not recommended for survey control. DX4949.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. DX4949.See file dsdata.txt to determine how the superseded data were derived. DX4949 DX4949 HISTORY - Date Condition Recov. By DX4949 HISTORY - 1939 MONUMENTED CGS DX4949 DX4949 STATION DESCRIPTION DX4949 DX4949'DESCRIBED BY COAST AND GEODETIC SURVEY 1939 (FGJ) DX4949'ABOUT 10 MILES EAST-NORTHEAST OF WARNER HOT SPRINGS ON THE DX4949'SOUTHWEST END OF A ROCKY RIDGE WHICH FORMS THE HIGHEST POINT DX4949'OF THE SAN YSIDRO MOUNTAINS. THIS RIDGE HAS A BARE MASSIVE DX4949'GRANITE OUTCROP ALONG THE TOP. DX4949' DX4949'TO REACH FROM WARNER HOT SPRINGS GO SOUTHWEST ON HIGHWAY DX4949'79 3.5 MILES TO SIDE ROAD AT SIGN (WARNER SPRINGS 4, SANTA DX4949'ISABEL 12, BORREGO VALLEY, MONTEZUMA VALLEY, ETC.). TURN LEFT, DX4949'EAST, ON MONTEZUMA VALLEY ROAD 4.6 MILES TO FORK. TAKE LEFT DX4949'FORK, MONTEZUMA VALLEY ROAD, 5.2 MILES TO A SIDE ROAD LEFT DX4949'AT SIGN (W. VOLK 2-1/2). TURN LEFT 1.2 MILES TO WIRE GATE DX4949'ON HILLTOP. CONTINUE STRAIGHT AHEAD 0.3 MILE TO WIRE GATE DX4949'ON RIGHT. TURN RIGHT THROUGH GATE 0.3 MILE TO VOLKS RANCH DX4949'HOUSE. (PERMISSION NECESSARY TO PROCEED). GO THROUGH WIRE DX4949'GATE 0.1 MILE SOUTH OF VOLKS HOUSE AND FOLLOW THE MAIN WASH DX4949'EASTERLY AND THEN NORTHERLY 1.1 MILES TO THE FOOT OF A DX4949'STEEP RIDGE WHERE THE WASH IS BLOCKED BY BOULDERS. END OF DX4949'TRUCK TRAVEL. PACK NORTH UP WASH, KEEPING TO THE MAIN DX4949'LEFT HAND WASH AT FORKS, ABOUT 1/2 MILE TO A SADDLE. TURN DX4949'RIGHT TO HIGHEST POINT AND STATION ABOUT 45 MINUTES PACK DX4949'FROM END OF TRUCK TRAVEL. THE STATION IS ON A GRANITE DX4949'BOULDER ABOUT 20 FEET LONG AND 10 FEET WIDE WHICH STANDS DX4949'10 FEET ABOVE THE GROUND. IT IS ON THE SOUTHWEST END OF THE DX4949'NARROW RIDGE WHICH FORMS THE HIGHEST PART OF THE PEAK. DX4949'THIS IS NOT THE HIGHEST BOULDER BUT IS THE ONLY ONE WITH ROOM DX4949'ON TOP TO BE OCCUPIED FOR STATION. DX4949' DX4949'SURFACE, REFERENCE AND AZIMUTH MARKS ARE STANDARD BRONZE DISKS, DX4949'NOTES 2 AND 12A. DX4949' DX4949'REFERENCE MARKS ARE IN HUGE BOULDERS SIMILAR TO STATION MARK. DX4949' DX4949'AZIMUTH MARK IS IN PROMINENT GRANITE BOULDER WHICH FORMS DX4949'THE HIGHEST POINT OF THE FIRST RIDGE TO THE SOUTHWEST, ABOUT DX4949'1/2 MILE DISTANT AND ACROSS SADDLE FROM STATION. AZIMUTH DX4949'MARK WOULD BE ABOUT 1/2 MILE NORTHWEST OF THE END OF TRUCK DX4949'TRAVEL ON THE FIRST RIDGE WEST OF THE WASH LEADING TO STATION. *** retrieval complete. Elapsed Time = 00:00:04