National Geodetic Survey, Retrieval Date = APRIL 25, 2000 DW0936 *********************************************************************** DW0936 DESIGNATION - TWIN DW0936 PID - DW0936 DW0936 STATE/COUNTY- AZ/LA PAZ DW0936 USGS QUAD - TWEED MINE (1986) DW0936 DW0936 *CURRENT SURVEY CONTROL DW0936 ___________________________________________________________________ DW0936* NAD 83(1992)- 33 15 46.96300(N) 114 19 14.11961(W) ADJUSTED DW0936* NAVD 88 - 860.9 (meters) 2824. (feet) VERTCON DW0936 ___________________________________________________________________ DW0936 LAPLACE CORR- 1.21 (seconds) DEFLEC99 DW0936 GEOID HEIGHT- -32.68 (meters) GEOID99 DW0936 DW0936 HORZ ORDER - SECOND DW0936 DW0936.The horizontal coordinates were established by classical geodetic methods DW0936.and adjusted by the National Geodetic Survey in August 1993. DW0936 DW0936.The NAVD 88 height was computed by applying the VERTCON shift value to DW0936.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) DW0936 DW0936.The Laplace correction was computed from DEFLEC99 derived deflections. DW0936 DW0936.The geoid height was determined by GEOID99. DW0936 DW0936; North East Units Scale Converg. DW0936;SPC AZ W - 251,075.691 160,198.628 MT 0.99996816 -0 18 46.7 DW0936;UTM 11 - 3,683,651.146 749,590.582 MT 1.00036813 +1 28 13.3 DW0936 DW0936: Primary Azimuth Mark Grid Az DW0936:SPC AZ W - TRIGO 275 51 59.0 DW0936:UTM 11 - TRIGO 274 04 59.0 DW0936 DW0936|---------------------------------------------------------------------| DW0936| PID Reference Object Distance Geod. Az | DW0936| dddmmss.s | DW0936| TWIN RM 2 4.832 METERS 10824 | DW0936| DW0938 TRIGO APPROX.16.0 KM 2753312.3 | DW0936| TWIN RM 1 5.457 METERS 33746 | DW0936|---------------------------------------------------------------------| DW0936 DW0936 SUPERSEDED SURVEY CONTROL DW0936 DW0936 NAD 83(1986)- 33 15 46.96320(N) 114 19 14.12584(W) AD( ) 2 DW0936 NAD 27 - 33 15 46.84000(N) 114 19 11.32100(W) AD( ) 2 DW0936 NGVD 29 - 860.1 (m) 2822. (f) VERT ANG DW0936 DW0936.Superseded values are not recommended for survey control. DW0936.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. DW0936.See file dsdata.txt to determine how the superseded data were derived. DW0936 DW0936_MARKER: DD = SURVEY DISK DW0936_SETTING: 66 = SET IN ROCK OUTCROP DW0936 DW0936 HISTORY - Date Condition Recov. By DW0936 HISTORY - 1949 MONUMENTED USGS DW0936 DW0936 STATION DESCRIPTION DW0936 DW0936'DESCRIBED BY US GEOLOGICAL SURVEY 1949 (DHK) DW0936'THE STATION IS ABOUT 21 MILES AIRLINE A LITTLE WEST OF SOUTH DW0936'OF QUARTZSITE, ON A SHARP, ROCKY PEAK. THERE IS ANOTHER DW0936'PEAK ABOUT 0.4 MILE TO THE EAST THAT IS ALSO SHARP AND ROCKY DW0936'AND SLIGHTLY LOWER. THE STATION MARK IS A U.S. GEOLOGICAL DW0936'SURVEY BENCH MARK SET IN BEDROCK ON THE HIGHEST POINT OF DW0936'THE PEAK. IT IS STAMPED, TWIN 1933. DW0936' DW0936'ONE REFERENCE MARK IS A U.S. GEOLOGICAL SURVEY REFERENCE MARK DW0936'SET IN BEDROCK, ABOUT 2 FEET LOWER THAN THE STATION MARK. DW0936'IT PROJECTS 18 INCHES AND IS STAMPED, NO 1 TWIN. DW0936' DW0936'THE OTHER REFERENCE MARK IS A U.S. GEOLOGICAL SURVEY REFERENCE DW0936'MARK SET IN BEDROCK ABOUT 3 FEET LOWER THAN THE STATION MARK. DW0936'IT PROJECTS 8 INCHES AND IS STAMPED, NO 2 1933 TWIN. DW0936' DW0936'NO AZIMUTH MARK WAS ESTABLISHED. DW0936' DW0936'TO REACH THE STATION FROM QUARTZSITE. GO SOUTH ON STATE DW0936'HIGHWAY 95, 31.15 MILES TO A POINT JUST BEFORE REACHING AN DW0936'S CURVE. TURN RIGHT, GO WEST ABOUT 75 YARDS TO A WASH. CROSS DW0936'WASH AND FOLLOW A DIM ROAD WESTERLY, OVER A LOW RIDGE 0.4 MILE TO DW0936'A LARGE WASH. TURN RIGHT AND FOLLOW UP WASH 5.15 MILES TO END OF DW0936'TRUCK TRAVEL AT A POINT SOUTH OF THE SHARP PEAK. THIS 5.15 MILES IS DW0936'ROUGH AND SANDY AND REQUIRES A FOUR WHEEL DRIVE VEHICLE. FROM DW0936'END OF TRUCK TRAVEL WALK NORTHWESTERLY TO A SMALL SADDLE. DW0936'THEN TURN RIGHT AND FOLLOW STEEP SLOPE AND SMALL CANYON TO THE DW0936'HIGHEST POINT AND STATION. A 45 MINUTE PACK.