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Did I get caught in the DUH factor?


Dale_Lynn

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I was out riding today, found a bench mark.

 

Took L&L of it with GPS and copied number off it.

 

Number was M1192 over the date of 1968..

 

Maybe I'm not searching the right NGS database, because everything says its not a valid number...

 

Did I miss a leading "alpha" character on the marker?

 

Dale

 

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I'm Diagonally Parked, In A Parallel Universe.

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It may be a Elavation? what is the elevation of that point + - You may have found what is called an isolated bench mark.If it is not listed here or there you may have to write the Authority of the Bench mark BLM NGS USGS if you are using a Quadrangle map,you can write and get the Information in the Upper right hand corner of the map to the address in the lower right hand side of the map.

 

When all else fails Geotry again.

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I found it.

 

quote:

 

 

The NGS Data SheetSee file dsdata.txt for more information about the datasheet.DATABASE = Sybase ,PROGRAM = datasheet, VERSION = 6.70

1 National Geodetic Survey, Retrieval Date = JANUARY 20, 2003

GU2036 ***********************************************************************

GU2036 DESIGNATION - M 1192

GU2036 PID - GU2036

GU2036 STATE/COUNTY- CA/MONTEREY

GU2036 USGS QUAD - SAN JUAN BAUTISTA (1993)

GU2036

GU2036 *CURRENT SURVEY CONTROL

GU2036 ___________________________________________________________________

GU2036* NAD 83(1986)- 36 47 21. (N) 121 35 19. (W) SCALED

GU2036* NAVD 88 - 93.71 (+/-2cm) 307.4 (feet) VERTCON

GU2036 ___________________________________________________________________

GU2036 GEOID HEIGHT- -33.15 (meters) GEOID99

GU2036

GU2036 VERT ORDER - FIRST CLASS I (See Below)

GU2036

GU2036.The horizontal coordinates were scaled from a topographic map and have

GU2036.an estimated accuracy of +/- 6 seconds.

GU2036

GU2036.The NAVD 88 height was computed by applying the VERTCON shift value to

GU2036.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)

GU2036.The vertical order pertains to the superseded datum.

GU2036

GU2036.The geoid height was determined by GEOID99.

GU2036

GU2036; North East Units Estimated Accuracy

GU2036;SPC CA 4 - 664,660. 1,768,990. MT (+/- 180 meters Scaled)

GU2036

GU2036 SUPERSEDED SURVEY CONTROL

GU2036

GU2036 NGVD 29 - 92.846 (m) 304.61 (f) ADJUSTED 1 1

GU2036

GU2036.Superseded values are not recommended for survey control.

GU2036.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.

GU2036.See file dsdata.txt to determine how the superseded data were derived.

GU2036

GU2036_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SFF259724(NAD 83)

GU2036_MARKER: DB = BENCH MARK DISK

GU2036_SETTING: 36 = BRIDGE

GU2036_STAMPING: M 1192 1968

GU2036_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL

GU2036

GU2036 HISTORY - Date Condition Report By

GU2036 HISTORY - 1968 MONUMENTED CGS

GU2036

GU2036 STATION DESCRIPTION

GU2036

GU2036'DESCRIBED BY COAST AND GEODETIC SURVEY 1968

GU2036'9.3 MI NE FROM SALINAS.

GU2036'2.75 MILES NORTH ALONG MAIN STREET FROM THE SOUTHERN PACIFIC

GU2036'COMPANY RAILROAD STATION AT SALINAS, THENCE 6.55 MILES NORTHEAST

GU2036'ALONG SAN JUAN GRADE ROAD, 8.0 MILES SOUTHWEST OF SAN JUAN

GU2036'BAUTISTA, IN THE TOP AND 1.1 FEET SOUTHWEST OF THE NORTHEAST

GU2036'END OF THE SOUTHEAST CONCRETE CURB OF A CONCRETE BRIDGE OVER A

GU2036'CREEK, 11 1/2 FEET SOUTHEAST OF THE CENTER LINE OF THE ROAD, AND

GU2036'ABOUT 1 FOOT HIGHER THAN THE ROAD.

 

*** retrieval complete.

Elapsed Time = 00:00:01

 


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