National Geodetic Survey, Retrieval Date = APRIL 26, 2000 DB1238 *********************************************************************** DB1238 DESIGNATION - MUGG DB1238 PID - DB1238 DB1238 STATE/COUNTY- AZ/YUMA DB1238 USGS QUAD - RED BLUFF MTN WEST (1986) DB1238 DB1238 *CURRENT SURVEY CONTROL DB1238 ___________________________________________________________________ DB1238* NAD 83(1992)- 32 48 58.74934(N) 114 14 51.61014(W) ADJUSTED DB1238* NAVD 88 - 582.1 (meters) 1910. (feet) VERTCON DB1238 ___________________________________________________________________ DB1238 LAPLACE CORR- 2.54 (seconds) DEFLEC99 DB1238 GEOID HEIGHT- -33.11 (meters) GEOID99 DB1238 DB1238 HORZ ORDER - FIRST DB1238 DB1238.The horizontal coordinates were established by classical geodetic methods DB1238.and adjusted by the National Geodetic Survey in August 1993. DB1238 DB1238.The NAVD 88 height was computed by applying the VERTCON shift value to DB1238.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) DB1238 DB1238.The Laplace correction was computed from DEFLEC99 derived deflections. DB1238 DB1238.The geoid height was determined by GEOID99. DB1238 DB1238; North East Units Scale Converg. DB1238;SPC AZ W - 201,499.268 166,757.920 MT 0.99996010 -0 16 11.0 DB1238;UTM 11 - 3,634,280.179 757,683.880 MT 1.00041883 +1 29 32.8 DB1238 DB1238: Primary Azimuth Mark Grid Az DB1238:SPC AZ W - MUGG RM 3 285 33 21.1 DB1238:UTM 11 - MUGG RM 3 283 47 37.3 DB1238 DB1238|---------------------------------------------------------------------| DB1238| PID Reference Object Distance Geod. Az | DB1238| dddmmss.s | DB1238| MUGG RM 1 8.392 METERS 09647 | DB1238| MUGG RM 3 2851710.1 | DB1238| MUGG RM 2 7.413 METERS 33835 | DB1238|---------------------------------------------------------------------| DB1238 DB1238 SUPERSEDED SURVEY CONTROL DB1238 DB1238 NAD 83(1986)- 32 48 58.74981(N) 114 14 51.61630(W) AD( ) 1 DB1238 NAD 27 - 32 48 58.59300(N) 114 14 48.82800(W) AD( ) 1 DB1238 NGVD 29 - 581.4 (m) 1907. (f) VERT ANG DB1238 DB1238.Superseded values are not recommended for survey control. DB1238.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. DB1238.See file dsdata.txt to determine how the superseded data were derived. DB1238 DB1238_MARKER: DS = TRIANGULATION STATION DISK DB1238_SETTING: 66 = SET IN ROCK OUTCROP DB1238 DB1238 HISTORY - Date Condition Recov. By DB1238 HISTORY - 1934 MONUMENTED CGS DB1238 HISTORY - 1949 GOOD CGS DB1238 HISTORY - 1952 GOOD USE DB1238 HISTORY - 1956 GOOD CGS DB1238 HISTORY - 1961 GOOD AMS DB1238 HISTORY - 1972 GOOD AZHD DB1238 DB1238 STATION DESCRIPTION DB1238 DB1238'DESCRIBED BY COAST AND GEODETIC SURVEY 1934 (EBL) DB1238'STATION IS ON THE HIGHEST AND MOST NORTHERN PEAK OF THE DB1238'MUGGINS MOUNTAINS. STATION LIES ABOUT 8 MILES, AIR LINE, DB1238'NE OF THE TOWN OF DOME, AND ABOUT 12 MILES NW OF THE TOWN OF DB1238'WELLTON. DB1238' DB1238'STATION MARK IS A STANDARD BRONZE DISK WEDGED IN A DRILL DB1238'HOLE IN OUTCROPPING BEDROCK AND SURROUNDED BY A TRIANGLE DB1238'CHISELED IN THE ROCK. DB1238' DB1238'REFERENCE MARKS ARE STANDARD BRONZE DISKS WEDGED IN DRILL DB1238'HOLES IN OUTCROPPING BEDROCK. DB1238' DB1238'STATION IS REACHED FROM YUMA BY FOLLOWING U.S. HIGHWAY 80 DB1238'EASTERLY FROM THE POST OFFICE 9.6 MILES, TURN LEFT ON THE DOME DB1238'ROAD, GO 1 MILE, KEEP STRAIGHT AHEAD, GO 1.0 MILE, TURN RIGHT, DB1238'GO 8.3 MILES, TURN LEFT ON THE QUARTZITE ROAD, GO 1.0 MILE DB1238'CROSSING THE SUSPENSION BRIDGE, TAKE RIGHT FORK, GO 5.0 MILES, DB1238'TAKE RIGHT FORK, GO 2.5 MILES, TURN RIGHT OFF THE MAIN ROAD DB1238'ABOUT 0.1 MILE AFTER CROSSING A BRIDGE, GO 2.2 MILES, TAKE DB1238'A RIGHT FORK, GO 0.1 MILE, TAKE LEFT FORK, GO 0.2 MILE AND DB1238'CONTINUE STRAIGHT AHEAD AT CROSS ROAD, GO 0.1 MILE, KEEP DB1238'STRAIGHT AHEAD, GO 0.4 MILE, TAKE RIGHT FORK, GO 1.8 MILES, TAKE DB1238'RIGHT FORK ON MAIN-TRAVELED ROAD, GO 1.2 MILES AND TURN DB1238'RIGHT OFF THE ROAD, GO SE ABOUT 0.3 MILE TO END OF TRUCK DB1238'TRAVEL. FROM HERE STATION CAN BE SEEN, BEARING 129 DEG DB1238'(MAGNETIC). DB1238' DB1238'BEST ROUTE IS TO GO S ACROSS DESERT KEEPING TO THE RIGHT OF DB1238'A LARGE WASH WHICH HEADS ABOUT 3/8 MILE W OF THE STATION DB1238'TO THE TOP OF THE RIDGE. CROSS THE SADDLE AT THE HEAD OF THE DB1238'ABOVE MENTIONED WASH AND FOLLOW THE RIDGE E TO THE STATION, DB1238'PASSING REFERENCE MARK NO. 3 ON PEAK 1/4 MILE W OF THE STATION. DB1238'IT IS ABOUT 2 1/4-HOUR PACK OF ROUGH GOING. DB1238 DB1238 STATION RECOVERY (1949) DB1238 DB1238'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1949 (DHK) DB1238'STATION RECOVERED AS DESCRIBED AND ALL MARKS FOUND IN GOOD DB1238'CONDITION. A NEW TO REACH FOLLOWS. DB1238' DB1238'THE STATION IS LOCATED ABOUT 12 MILES AIR LINE NORTHWEST OF DB1238'WELTON, ABOUT 8 MILES AIR LINE NORTHEAST OF DOME, ON THE DB1238'HIGHEST AND MOST NORTHERN PEAK OF THE MUGGINS MOUNTAINS. THE DB1238'THE STATION, PROJECTS 2 INCHES AND STAMPED, DB1238'MUGG 1934. DB1238' DB1238'REFERENCE MARK NO. 1 IS APPROXIMATELY THE SAME ELEVATION AS DB1238'THE STATION MARK, SET FLUSH WITH THE DB1238'GROUND AND STAMPED, MUGG NO 1 1934. DB1238' DB1238'REFERENCE MARK NO. 2 IS APPROXIMATELY 8 FEET LOWER THAN THE DB1238'STATION MARK, PROJECTS 4 INCHES DB1238'AND STAMPED, MUGG NO 2 1934. DB1238' DB1238'REFERENCE MARK NO. 3 WHICH IS THE AZIMUTH MARK, IS SET ON A DB1238'SPUR RIDGE, 5 FEET SOUTH OF A CAIRN, DB1238'PROJECTS 12 INCHES, AND STAMPED, MUGG AZIMUTH NO 3 1934. DB1238' DB1238'TO REACH THE STATION FROM COUNTY WELL, WHICH IS ABOUT 25 MILES DB1238'NORTH OF YUMA ON STATE HIGHWAY 95, GO NORTH FOR 100 YARDS DB1238'AND TURN RIGHT ONTO AN OLD ROAD AND GO 2 MILES TO A Y-FORK. DB1238'TAKE THE LEFT FORK, SOUTH, AND CONTINUE FOR 2.55 MILES TO A DB1238'ROAD INTERSECTION AND A OLD ROAD SIGN READING, DOME 6 MILES ETC. DB1238'TAKE A FORK LEADING EAST FOR 0.5 MILE TO A LINE OF OPEN PITS. DB1238'PASS BY THE NORTH END OF THE PITS AND GO 0.2 MILE TO WHERE DB1238'TRACKS CROSS THE ROAD. CONTINUE STRAIGHT AHEAD FOR 0.1 DB1238'MILE AND THENCE KEEP TO RIGHT ON THE LEAST TRAVELED TRACKS DB1238'FOR 1.1 MILES TO A Y-FORK IN THE TRACKS. KEEP THE RIGHT DB1238'FORK WHICH BEARS NEARER TO THE MOUNTAINS FOR 0.6 MILE TO DB1238'WHERE THE TRACKS APPEAR TO END BUT CONTINUE EASTWARD AND DB1238'ENTER A WASH (NEAR HERE ENDS TRUCK TRAVEL WITH A TWO WHEEL DB1238'DRIVE TRUCK). ENTER THE WASH AND FOLLOW TRACKS FOR 2.1 DB1238'MILES TO WHERE ROAD AGAIN APPROACHES THE MOUNTAIN, THE DB1238'TRACKS BECOME VERY DIM AND ARE HARD TO FOLLOW AT THE END DB1238'OF THIS MILEAGE. CONTINUE ON DIM TRACKS FOR 1.45 MILES, DB1238'THENCE TURN RIGHT OFF OF TRACKS AND PICK THE BEST ROUTE DB1238'ACROSS COUNTRY FOR 1.1 MILES TO A POINT NORTH OF A SADDLE THAT DB1238'LIES WEST OF THE STATION AND END OF TRUCK TRAVEL. FROM HERE DB1238'PACK SOUTH ALONG THE WEST SLOPE OF THE RIDGE TO A POINT ON THE DB1238'CREST OF THE RIDGE AND EAST OF THE SADDLE. AND THENCE DB1238'FOLLOW THE RIDGE EAST TO THE STATION, PASSING THE DB1238'AZIMUTH MARK ENROUTE ABOUT 0.3 MILE WEST OF THE STATION. A DB1238'2-HOUR PACK WITH A FOUR WHEEL DRIVE VEHICLE. DB1238' DB1238'OBSERVATIONS MADE FROM A 1.3 METER TRIPOD. DB1238 DB1238 STATION RECOVERY (1952) DB1238 DB1238'RECOVERY NOTE BY US ENGINEERS 1952 DB1238'RECOVERY TO BASE OF PEAK ONLY. DB1238' DB1238'TO REACH FROM COUNTY WELL, GO 0.55 MILE NORTH FROM COUNTY WELL DB1238'ON HWY. 95 TO THE ARMY ARTILLERY RANGE ROAD, GO RIGHT 1.5 DB1238'MILE TO MAIN FIRING FRONT, TURN RIGHT ON WIDE GRAVEL FRONT DB1238'WHICH LEADS INTO WINDING GRAVEL ROAD AND GO 6.65 MILES TO A POINT DB1238'OPPOSITE THE PEAK, TURN RIGHT ACROSS DESERT PAVEMENT AND GO 0.65 DB1238'MILE TO END OF TRUCK TRAVEL. CAIRN IS VISIBLE ON PEAK. PEAK DB1238'MAY BE DISTINGUISHED AS A SMOOTH GRASSY TIP THE HIGHEST AND DB1238'CENTRALLY LOCATED AMONGST OTHER PEAKS IN THE VICINITY. CLIMB DB1238'DIRECTLY TOWARD STATION PEAK OR BEAR TO THE RIGHT AND DB1238'APPROACH FROM THE WEST BY ASCENDING TO RIDGE AND PASSING DB1238'AZIMUTH MARK WHICH IS WEST OF STATION. DB1238 DB1238 STATION RECOVERY (1956) DB1238 DB1238'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1956 (RLE) DB1238'THE STATION MARK, REFERENCE MARK NO. 1, REFERENCE MARK NO. 2 DB1238'AND THE AZIMUTH MARK WERE RECOVERED AND FOUND IN VERY GOOD DB1238'CONDITION. A NEW AND COMPLETE DESCRIPTION FOLLOWS. DB1238' DB1238'THE STATION IS ABOUT 12 MILES NORTHWEST OF WELTON, ABOUT 8 DB1238'MILES NORTHEAST OF DOME AND ABOUT 8 MILES EAST-SOUTHEAST OF DB1238'THE YUMA, U.S. ARMY TEST STATION, ON THE HIGHEST AND MOST DB1238'NORTHERN PEAK OF THE MUGGINS MOUNTAINS. THE STATION MARK IS DB1238'4 FEET WEST OF A CAIRN. IT PROJECTS 2 INCHES AND IS STAMPED DB1238'MUGG 1934. DB1238' DB1238'REFERENCE MARK NO. 1 IS 2 FEET SOUTHWEST OF A CAIRN AND THE DB1238'SAME ELEVATION AS THE STATION. IT PROJECTS 6 INCHES AND THE DB1238'DISK IS STAMPED MUGG NO 1 1934. DB1238' DB1238'REFERENCE MARK NO. 2 IS 1 FOOT NORTHEAST OF A CAIRN AND 8 FEET DB1238'BELOW STATION ELEVATION. IT PROJECTS 2 INCHES AND THE DISK DB1238'IS STAMPED MUGG NO 2 1934. DB1238' DB1238'THE AZIMUTH MARK IS 4 FEET SOUTH OF A CAIRN AND 2 FEET DB1238'EAST-SOUTHEAST OF ANOTHER CAIRN. IT IS A STANDARD REFERENCE DB1238'MARK DISK CEMENTED IN A DRILL HOLE IN OUTCROPPING BEDROCK. DB1238'IT PROJECTS 12 INCHES AND IS STAMPED MUGG AZIMUTH 1934 R.M. NO 3. DB1238' DB1238'TO REACH THE STATION FROM THE YUMA CITY HALL GO WEST ON FIRST DB1238'STREET FOR 0.1 MILE TO U.S. HIGHWAY 80, TURN LEFT, SOUTH, DB1238'ON U.S. HIGHWAY 80 AND GO 1.8 MILES TO THE JUNCTION WITH DB1238'STATE HIGHWAY 95, TURN LEFT AND GO EAST AND NORTH ON STATE DB1238'HIGHWAY 95 FOR 20-1/2 MILES TO THE YUMA, U.S. ARMY TEST STATION DB1238'ON THE LEFT. CONTINUE NORTH ON STATE HIGHWAY 95 FOR 2.7 MILES DB1238'TO A FORK AND SIGN ON THE RIGHT MARTINEZ LAKE 11. CONTINUE DB1238'NORTH ON STATE HIGHWAY 95 FOR 0.55 TO A SIDE ROAD RIGHT, DB1238'TURN RIGHT AND FOLLOW MACADAM ROAD EAST FOR 0.6 MILE TO A DB1238'GUARDED GATE (PASSES MUST BE OBTAINED FROM THE OPERATION DB1238'BUILDING). PASS THRU GATE AND CONTINUE EAST FOR 0.8 MILE DB1238'TO A CONTROL TOWER. HERE IT IS NECESSARY TO OBTAIN DB1238'PERMISSION TO ENTER THE FIRING RANGE. CONTINUE EAST FROM THE DB1238'CONTROL TOWER FOR 0.1 MILE TO A CROSSROAD, TURN RIGHT AND DB1238'GO SOUTH-SOUTHWEST FOR 1.1 MILES TO A CROSSROAD. HERE TURN LEFT, DB1238'EAST AND GO 3.9 MILES TO A CROSSROAD, CONTINUE EAST FOR 2.0 DB1238'MILES TO A DIM FORK RIGHT, TURN RIGHT AND PICK WAY ACROSS DB1238'COUNTRY FOR 1.0 MILE AND THE END OF TRUCK TRAVEL. FROM DB1238'HERE PACK INTO THE BOX CANYON, THEN PACK SOUTH UP THE ROCKY DB1238'SLOPE TO THE SUMMIT AND THE STATION AND REFERENCE MARKS AS DB1238'DESCRIBED. DB1238' DB1238'TO REACH THE AZIMUTH MARK FROM THE STATION PACK WEST-NORTHWEST DB1238'ALONG THE CREST OF THE RIDGE FOR ABOUT 0.25 MILE TO THE AZIMUTH DB1238'MARK. DB1238 DB1238 STATION RECOVERY (1961) DB1238 DB1238'RECOVERY NOTE BY US ARMY MAP SERVICE (NOW DMA) 1961 DB1238'THE STATION WAS RECOVERED IN GOOD CONDITION AS DESCRIBED. DB1238 DB1238 STATION RECOVERY (1972) DB1238 DB1238'RECOVERY NOTE BY ARIZONA HIGHWAY DEPARTMENT (NOW AZDT) 1972 (JHW) DB1238'GENERAL LOCATION THE STATION AND THE REFERENCE MARKS WERE DB1238'RECOVERED IN GOOD CONDITION AS DESCRIBED BY THE USC AND GS. DB1238'THE DESCRIPTION IS ADEQUATE.