National Geodetic Survey, Retrieval Date = JANUARY 14, 2003 MX1242 *********************************************************************** MX1242 DESIGNATION - PRESTON PK MX1242 PID - MX1242 MX1242 STATE/COUNTY- CA/SISKIYOU MX1242 USGS QUAD - PRESTON PEAK (1982) MX1242 MX1242 *CURRENT SURVEY CONTROL MX1242 ___________________________________________________________________ MX1242* NAD 83(1992)- 41 50 06.23336(N) 123 36 42.97652(W) ADJUSTED MX1242* NAVD 88 - 2228.9 (meters) 7313. (feet) VERTCON MX1242 ___________________________________________________________________ MX1242 EPOCH DATE - 1991.35 MX1242 LAPLACE CORR- 7.99 (seconds) DEFLEC99 MX1242 GEOID HEIGHT- -25.11 (meters) GEOID99 MX1242 MX1242 HORZ ORDER - SECOND MX1242 MX1242.The horizontal coordinates were established by classical geodetic methods MX1242.and adjusted by the National Geodetic Survey in March 1994. MX1242.The horizontal coordinates are valid at the epoch date displayed above. MX1242.The epoch date for horizontal control is a decimal equivalence MX1242.of Year/Month/Day. MX1242 MX1242.The NAVD 88 height was computed by applying the VERTCON shift value to MX1242.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) MX1242 MX1242.The Laplace correction was computed from DEFLEC99 derived deflections. MX1242 MX1242.The geoid height was determined by GEOID99. MX1242 MX1242; North East Units Scale Converg. MX1242;SPC CA 1 - 779,033.920 1,866,106.640 MT 1.00004713 -1 03 14.5 MX1242;SPC CA 1 - 2,555,880.45 6,122,384.87 sFT 1.00004713 -1 03 14.5 MX1242;UTM 10 - 4,631,644.905 449,189.988 MT 0.99963177 -0 24 29.4 MX1242 MX1242: Primary Azimuth Mark Grid Az MX1242:SPC CA 1 - SANGER PK LOOKOUT HOUSE 339 59 10.1 MX1242:UTM 10 - SANGER PK LOOKOUT HOUSE 339 20 25.0 MX1242 MX1242|---------------------------------------------------------------------| MX1242| PID Reference Object Distance Geod. Az | MX1242| dddmmss.s | MX1242| MX1243 7310 1.601 METERS 02426 | MX1242| NZ1263 BOLAN MTN LOOKOUT HOUSE APPROX.23.8 KM 0320714.5 | MX1242| CD9861 PRESTON PK RM 1 4.344 METERS 03422 | MX1242| CD9862 PRESTON PK RM 2 5.175 METERS 16719 | MX1242| MX1250 SANGER PK LOOKOUT HOUSE APPROX.10.1 KM 3385555.6 | MX1242|---------------------------------------------------------------------| MX1242 MX1242 SUPERSEDED SURVEY CONTROL MX1242 MX1242 NAD 83(1991)- 41 50 06.22689(N) 123 36 42.97648(W) AD(1984.00) 2 MX1242 NAD 83(1986)- 41 50 06.22511(N) 123 36 42.97759(W) AD(1984.00) 2 MX1242 NAD 27 - 41 50 06.80320(N) 123 36 38.73940(W) AD( ) 2 MX1242 NGVD 29 - 2227.8 (m) 7309. (f) VERT ANG MX1242 MX1242.Superseded values are not recommended for survey control. MX1242.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. MX1242.See file dsdata.txt to determine how the superseded data were derived. MX1242 MX1242_U.S. NATIONAL GRID SPATIAL ADDRESS: 10TDM4919031645(NAD 83) MX1242_MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION MX1242_SETTING: 80 = SET IN A BOULDER MX1242 MX1242 HISTORY - Date Condition Report By MX1242 HISTORY - 1952 MONUMENTED CGS MX1242 MX1242 STATION DESCRIPTION MX1242 MX1242'DESCRIBED BY COAST AND GEODETIC SURVEY 1952 (WRH) MX1242'THE STATION IS LOCATED ON THE HIGHEST POINT OF PRESTON PEAK, MX1242'A HIGH ROCKY PEAK THAT IS THE HIGHEST IN THE VICINITY. IT MX1242'IS ABOUT 2-1/2 MILES AIRLINE SOUTH OF A LARGE CHROME MINE, MX1242'ABOUT 12 MILES AIRLINE WEST-NORTHWEST OF HAPPY CAMP, ABOUT MX1242'17 MILES AIRLINE SOUTH OF O BRIEN, AND ABOUT 17 MILES AIRLINE MX1242'EAST OF THE GASQUET RANGER STATION. MX1242' MX1242'THE STATION IS A STANDARD DISK STAMPED PRESTON PK 1952 AND MX1242'SET IN A DRILL HOLE IN A LARGE BOULDER THAT IS ABOUT 10 FEET MX1242'SOUTH OF THE HIGHEST POINT OF THE PEAK AND ABOUT 6 FEET LOWER MX1242'THAN THE HIGHEST POINT. MX1242' MX1242'REFERENCE MARK NUMBER ONE IS A STANDARD DISK STAMPED PRESTON MX1242'PK NO 1 1952 AND SET IN A DRILL HOLE IN A LARGE BOULDER THAT MX1242'PROJECTS ABOUT 1 FOOT AND IS ABOUT 3 FEET HIGHER THAN THE STATION. MX1242' MX1242'REFERENCE MARK NUMBER TWO IS A STANDARD DISK STAMPED PRESTON MX1242'PK NO 2 1952 AND SET IN A DRILL HOLE IN A LARGE BOULDER THAT MX1242'IS ABOUT 6 FEET IN DIAMETER AND ABOUT 3-1/2 FEET LOWER THAN MX1242'THE STATION. MX1242' MX1242'BM 7310 (USGS) IS A STANDARD USGS DISK SET IN A DRILL HOLE MX1242'IN A LARGE BOULDER THAT HAS A TOP SURFACE THAT SLANTS AT MX1242'ABOUT A 45 DEGREE ANGLE. IT IS ABOUT 3 FEET SQUARE AND MX1242'ABOUT 4 FEET HIGHER THAN THE STATION. THE DISK IS STAMPED MX1242'7310 VA. MX1242' MX1242'THE SANGER PK LOOKOUT TOWER WILL SERVE AS THE AZIMUTH MARK MX1242'FOR THE STATION. IT IS ON THE HIGHEST POINT OF SANGER PEAK MX1242'AND ABOUT 25 FEET WEST-NORTHWEST OF THE STATION SANGER PK. MX1242' MX1242'TO REACH THE STATION FROM THE POST OFFICE IN O BRIEN GO EAST MX1242'ON THE ROAD AS PER SIGN HAPPY CAMP 43 FOR 3.5 MILES TO A MX1242'ROAD TO THE RIGHT. TURN RIGHT AS PER SIGN SANGER PK 12 AND MX1242'GO UP GRADE FOR 12.7 MILES TO A FORK. TAKE THE RIGHT FORK AND GO MX1242'1.1 MILES TO THE SUMMIT OF THE PASS AND A BUILDING ON THE LEFT. MX1242'CONTINUE, EAST AND SOUTHEAST ON THE MAIN TRAVELED ROAD FOR MX1242'4.8 MILES TO A FORK. TAKE THE RIGHT FORK AND GO 2.8 MILES MX1242'TO A LARGE MINE AND THE END OF TRUCK TRAVEL. FROM THE MINE MX1242'PACK SOUTHWEST TO THE CREST OF THE RIDGE. GO SOUTH ACROSS MX1242'THE SMALL CANYON AND UP TO THE TOP OF THE NEXT RIDGE. GO MX1242'EAST ALONG THE RIDGE, HOLDING ABOUT THE SAME ELEVATION, FOR MX1242'ABOUT 1/2 MILE TO A POINT ABOUT MIDWAY BETWEEN TWO SMALL LAKES. MX1242'CROSS OVER THE SMALL CREEK THAT JOINS THE TWO LAKES AND MX1242'GO SOUTHWEST UP ON THE POINT OF THE NEXT RIDGE. GO SOUTH MX1242'ALONG THE CREST OF THE RIDGE TO A HIGH SADDLE THAT IS AT MX1242'THE FOOT OF THE ROCKY PEAK. GO SOUTHEAST UP THE STEEP MX1242'ROCKY SLOPE TO THE HIGHEST POINT OF THE PEAK AND THE MX1242'STATION. THIS IS ABOUT 5 HOUR PACK DUE TO THE STEEP CLIMBS AND MX1242'THE BRUSH ENCOUNTERED IN ROUTE. MX1242' MX1242'HEIGHT OF LIGHT ABOVE STATION MARK 1.73 METERS.