National Geodetic Survey, Retrieval Date = OCTOBER 28, 2000 DC1868 *********************************************************************** DC1868 DESIGNATION - CARRIZO DC1868 PID - DC1868 DC1868 STATE/COUNTY- CA/IMPERIAL DC1868 USGS QUAD - CARRIZO MTN (1975) DC1868 DC1868 *CURRENT SURVEY CONTROL DC1868 ___________________________________________________________________ DC1868* NAD 83(1992)- 32 49 30.75178(N) 116 00 54.46888(W) ADJUSTED DC1868* NAVD 88 - 735.1 (meters) 2412. (feet) VERTCON DC1868 ___________________________________________________________________ DC1868 EPOCH DATE - 1991.35 DC1868 LAPLACE CORR- -3.30 (seconds) DEFLEC99 DC1868 GEOID HEIGHT- -33.68 (meters) GEOID99 DC1868 DC1868 HORZ ORDER - FIRST DC1868 DC1868.The horizontal coordinates were established by classical geodetic methods DC1868.and adjusted by the National Geodetic Survey in June 1996. DC1868.The horizontal coordinates are valid at the epoch date displayed above. DC1868.The epoch date for horizontal control is a decimal equivalence DC1868.of Year/Month/Day. DC1868 DC1868.The NAVD 88 height was computed by applying the VERTCON shift value to DC1868.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) DC1868 DC1868.The Laplace correction was computed from DEFLEC99 derived deflections. DC1868 DC1868.The geoid height was determined by GEOID99. DC1868 DC1868; North East Units Scale Converg. DC1868;SPC CA 6 - 1,880,110.90 6,633,819.89 sFT 0.99999330 +0 07 44.6 DC1868;SPC CA 6 - 573,058.949 2,021,992.345 MT 0.99999330 +0 07 44.6 DC1868;UTM 11 - 3,632,339.362 592,185.296 MT 0.99970478 +0 32 02.1 DC1868 DC1868: Primary Azimuth Mark Grid Az DC1868:SPC CA 6 - CARRIZO RM 3 029 13 02.5 DC1868:UTM 11 - CARRIZO RM 3 028 48 45.0 DC1868 DC1868|---------------------------------------------------------------------| DC1868| PID Reference Object Distance Geod. Az | DC1868| dddmmss.s | DC1868| CARRIZO RM 3 0292047.1 | DC1868| CARRIZO RM 1 8.671 METERS 04211 | DC1868| DC1869 NEAR STA CARRIZO 1.288 METERS 17143 | DC1868| CARRIZO RM 19.496 METERS 30159 | DC1868|---------------------------------------------------------------------| DC1868 DC1868 SUPERSEDED SURVEY CONTROL DC1868 DC1868 NAD 83(1986)- 32 49 30.75509(N) 116 00 54.46769(W) AD(1984.00) 1 DC1868 NAD 27 - 32 49 30.54254(N) 116 00 51.42246(W) AD( ) 1 DC1868 NGVD 29 - 734.4 (m) 2409. (f) VERT ANG DC1868 DC1868.Superseded values are not recommended for survey control. DC1868.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. DC1868.See file dsdata.txt to determine how the superseded data were derived. DC1868 DC1868 HISTORY - Date Condition Recov. By DC1868 HISTORY - 1924 MONUMENTED CGS DC1868 HISTORY - 1935 GOOD CGS DC1868 HISTORY - 1939 SEE DESCRIPTION CGS DC1868 HISTORY - 1941 GOOD CGS DC1868 HISTORY - 1954 SEE DESCRIPTION CGS DC1868 HISTORY - 1967 GOOD CGS DC1868 DC1868 STATION DESCRIPTION DC1868 DC1868'DESCRIBED BY COAST AND GEODETIC SURVEY 1935 DC1868'ABOUT 8 MILES NORTH BY WEST OF COYOTE WELLS, 5 MILES EAST DC1868'OF SAN DIEGO-IMPERIAL COUNTY LINE, AND ON HIGHEST POINT OF DC1868'CARRIZO MOUNTAIN. TO REACH FROM COYOTE WELLS, GO EAST 0.8 DC1868'MILE ON HIGHWAY TO SIGN PAINTED GORGE, TURN LEFT AND FOLLOW DC1868'MAIN-TRAVELED ROAD 5.0 MILE, TURN LEFT AND GO UP CANYON 1.4 DC1868'MILES, TURN RIGHT AND FOLLOW ROAD UP RIGHT BANK OF WASH 0.5 DC1868'MILE TO END OF ROAD, FOLLOW TRAIL ALONG RIGHT SIDE OF CANYON DC1868'TO RIDGE, AND PROCEED NORTH AND A LITTLE WEST ALONG RIDGE DC1868'TO HIGHEST POINT AND STATION SITE. STATION MARK IS PROBABLY DC1868'STANDARD STATION DISK. REFERENCE MARK IS STANDARD REFERENCE DC1868'DISK IN MARBLE 19.534 METERS (64.09 FEET) FROM STATION. DC1868'A UNITED STATES GEOLOGICAL SURVEY DC1868'CAIRN, 8 FEET HIGH, WAS 2.5 FEET SOUTH OF STATION, BUT IN DC1868'1935, HAD BEEN MOVED. A UNITED STATES GEOLOGICAL SURVEY DC1868'STATION MARK IS 1.290 METERS (4.23 FEET) FROM STATION. DC1868'IN 1935, A REFERENCE MARK AND AN AZIMUTH MARK WERE DC1868'ESTABLISHED. REFERENCE MARK IS 8.639 METERS (28.34 FEET) DC1868'EAST OF STATION, AND AZIMUTH MARK IS ON LIGHT-COLORED RIDGE DC1868'ONE-HALF MILE NORTHEAST OF STATION. DC1868 DC1868 STATION RECOVERY (1939) DC1868 DC1868'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1939 (FGL) DC1868'STATION IS LOCATED ABOUT 8 MILES, AIRLINE, NORTH BY WEST OF DC1868'COYOTE WELLS AND 5 MILES EAST OF SAN DIEGO AND IMPERIAL COUNTY DC1868'LINE, ON THE HIGHEST POINT OF CARRIZO MOUNTAIN. DC1868' DC1868'STATION REACHED FROM COYOTE WELLS, A SMALL SETTLEMENT ON DC1868'U.S. HIGHWAY 80, BY GOING EAST ON HIGHWAY 80 FOR 0.8 MILE DC1868'TO DIRT ROAD ON LEFT AT SIGN PAINTED GORGE 7 MILES. EL CENTRO DC1868'24-1/2 MILES, TURN LEFT ON DIRT ROAD AND FOLLOW PAINTED GORGE ROAD DC1868'FOR 2.9 MILES, TAKE RIGHT FORK FOR 0.4 MILE, TAKE RIGHT FORK DC1868'AS PER SIGN PAINTED GORGE 3-1/2 MILES, FOR 2.0 MILES AND DC1868'CONTINUE ON MAIN-TRAVELED ROAD UP CANYON (SIGN STATE HIGHWAY 5- DC1868'COYOTE WELLS 6), GO 1.5 MILES WHICH IS THE END OF TRUCK DC1868'TRAVEL UNLESS THE ROAD IS REPAIRED. PACK UP WASH FOR ABOUT DC1868'0.5 MILE TO WHERE ROAD ASCENDS THE RIGHT BANK OF THE DC1868'WASH, FOLLOW BADLY WASHED OUT ROAD TO END AND BEGINNING OF DC1868'TRAIL, FROM THE END OF THE OLD ROAD BED TAKE TRAIL ALONG DC1868'THE RIGHT SIDE OF CANYON TO THE RIDGE WHERE TRAIL ENDS AT DC1868'SOME OLD MINE WORKINGS, CONTINUE NORTH-NORTHWEST TO DC1868'HIGHEST POINT IN VICINITY AND STATION. A 2-1/2 HOUR DC1868'PACK. DC1868' DC1868'STATION IS MARKED BY A STANDARD DISK SET IN BEDROCK STAMPED DC1868'CORRIZO 1924. LOCAL NAME OF MOUNTAIN WHICH STATION IS ON IS DC1868'KNOWN AS CARRIZO MOUNTAIN. DISK IS STAMPED CARRIZO. MOST DC1868'LIKELY MIS-STAMPED. DC1868' DC1868'REFERENCE MARKS ARE STANDARD DISKS SET IN BEDROCK STAMPED CORRIZO DC1868'1924 AND CARRIZO 1935 NO. 1 DC1868' DC1868'AZIMUTH MARK IS A STANDARD REFERENCE DISK SET IN ROCK ABOUT DC1868'0.5 MILE NORTHEAST OF STATION ON A WHITE RIDGE IN A SADDLE. DC1868'MARK IS ABOUT 600 FEET LOWER THAN STATION AND IS A 45 MINUTE DC1868'PACK FROM STATION. MARK IS NOT EN ROUTE TO STATION. STAMPED DC1868'CARRIZO NO. 3 1935. DC1868' DC1868'THERE IS A DISCREPANCY BETWEEN OLD MEASUREMENTS TO REFERENCE DC1868'MARKS AND MEASUREMENTS MADE IN 1939. THE 1939 MEASUREMENTS DC1868'AS SHOWN ABOVE WERE CHECKED IN THE FIELD AND FOUND CORRECT. DC1868'THE 1939 MEASUREMENT TO REFERENCE MARK 1924 IS 0.4 METER DC1868'SHORTER THAN THE ORIGINAL MEASUREMENT. THE 1939 MEASUREMENT DC1868'TO REFERENCE MARK NO. 1 1935 IS .03 METER LONGER THAN THE DC1868'ORIGINAL MEASUREMENT. DC1868 DC1868 STATION RECOVERY (1941) DC1868 DC1868'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1941 (JCS) DC1868'STATION IS ABOUT 8 MILES N BY W OF COYOTE WELLS, 5 MILES E DC1868'OF SAN DIEGO-IMPERIAL COUNTY LINE, AND ON HIGHEST POINT OF DC1868'CARRIZO MOUNTAIN. DC1868' DC1868'STATION MARK IS A STANDARD BRONZE DISK SET IN BEDROCK AND DC1868'IS STAMPED CARRIZO 1924. IT IS NOT STAMPED CORRIZO AS PREVIOUSLY DC1868'STATED, ALL SPELLING ON MARKS BEING CAREFULLY CHECKED. DC1868' DC1868'AN UNSTAMPED U.S.G.S. BENCH MARK IS SET IN BEDROCK 1.288 DC1868'METERS S OF THE STATION MARK. DC1868' DC1868'REFERENCE MARK NO. 1 IS A STANDARD BRONZE DISK SET IN BEDROCK DC1868'9.582 METERS (31.440 FEET) SLOPE DISTANCE, NE OF THE STATION, DC1868'AND AT AN ELEVATION ABOUT 7 FEET LOWER. IT IS STAMPED CARRIZO, DC1868'NO. 1, 1935. DC1868' DC1868'REFERENCE MARK NO. 2 IS A STANDARD BRONZE DISK SET IN BEDROCK DC1868'19.793 METERS (64.940 FEET), SLOPE DISTANCE, NW OF THE STATION DC1868'AT AN ELEVATION ABOUT 6 FEET LOWER THAN THE STATION. IT IS DC1868'STAMPED CARRIZO, 1924 NOT CORRIZO 1924 AS PREVIOUSLY STATED. DC1868' DC1868'THE AZIMUTH MARK WAS RECOVERED AND FOUND TO BE IN GOOD CONDITION. DC1868'IT IS ON TOP OF A LOW FLAT RIDGE ABOUT 300 FEET LOWER THAN DC1868'THE STATION MARK AND IS A STANDARD BRONZE DISK SET IN CONCRETE DC1868'IN ROCK OUTCROP, STAMPED CARRIZO NO. 3 1935. DC1868' DC1868'TO REACH STATION FROM COYOTE WELLS GO E 0.8 MILE ON HIGHWAY DC1868'80 TO SIGN, PAINTED GORGE. TURN LEFT AND FOLLOW MAIN-TRAVELED DC1868'ROAD AND ALL PAINTED GORGE SIGNS TO SIGN POST AT MOUTH OF DC1868'GORGE. CONTINUE UP GORGE 1.6 MILES TO AN OBSCURE ROAD ON DC1868'RIGHT WHICH SWITCHES BACK AND RUNS UP OUT OF THE GORGE. TURN DC1868'RIGHT AND FOLLOW THIS ROAD 0.5 MILE TO END OF TRUCK TRAVEL. DC1868'CONTINUE ON WASHED OUT ROAD ABOUT 0.5 MILE TO ITS END AND DC1868'PICK UP TRAIL LEADING UP RIGHT-HAND SIDE OF CANYON. FOLLOW DC1868'TRAIL TO RIDGE AND CONTINUE ALONG RIDGE NNW TO HIGHEST POINT DC1868'AND STATION. DC1868 DC1868 STATION RECOVERY (1954) DC1868 DC1868'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1954 (LSB) DC1868'THE STATION AND ALL MARKS WERE RECOVERED AS DESCRIBED IN 1941. DC1868'THE ROUTE TO THE STATION IS NOW OBSOLETE DUE TO NEW ROADS. DC1868'A COMPLETE DESCRIPTION FOLLOWS-- DC1868' DC1868'THE STATION IS LOCATED ABOUT 8 MILES (AIR LINE) NORTH-NORTHWEST DC1868'OF COYOTE WELLS, 5 MILES (AIR LINE) EAST OF THE SAN DIEGO-IMPERIAL DC1868'COUNTY LINE, AND IS ON THE HIGHEST POINT OF WHAT IS LOCALLY DC1868'KNOWN AS CARRIZO MOUNTAIN. DC1868' DC1868'TO REACH FROM COYOTE WELLS, GO EAST ON U.S. HIGHWAY 80 FOR DC1868'2.6 MILES TO A BLADED ROAD ON THE LEFT AND A SIGN PAINTED DC1868'GORGE. TURN LEFT (NORTH) AND FOLLOW THE BLADED ROAD FOR 5.0 DC1868'MILES TO A FORK. TAKE THE LEFT FORK AND FOLLOW THE BLADED DC1868'ROAD WESTERLY UP THE GORGE FOR 1.7 MILES TO AN OLD ROAD LEADING DC1868'UP THE BANK ON THE RIGHT AND THE END OF TRUCK TRAVEL. PACK DC1868'NORTH AND WEST UP THE OLD ROAD WHICH HAS BEEN WASHED OUT IN DC1868'PLACES, TO THE END OF THE ROAD AND A TRAIL LEADING UP THE DC1868'SLOPE ON THE RIGHT. FOLLOW THE TRAIL TO AN OLD MINE AND THE DC1868'END OF THE TRAIL. PACK NORTHWEST UP THE RIDGES TO THE DC1868'HIGHEST POINT AND THE STATION. THIS IS A 2 1/2-HOUR PACK. DC1868' DC1868'THE STATION MARK, A STANDARD DISK STAMPED CARRIZO 1924, IS DC1868'SET IN A DRILL HOLE IN OUTCROPPING BEDROCK. DC1868' DC1868'REFERENCE MARK (1924), A STANDARD DISK STAMPED CARRIZO 1924, DC1868'IS SET IN A DRILL HOLE IN OUTCROPPING BEDROCK. IT IS ABOUT DC1868'6 FEET LOWER THAN THE STATION MARK. DC1868' DC1868'REFERENCE MARK 1, A STANDARD DISK STAMPED CARRIZO NO 1 1935, DC1868'IS SET IN A DRILL HOLE IN OUTCROPPING BEDROCK WHICH PROJECTS DC1868'4 INCHES ABOVE THE GROUND. IT IS ABOUT 7 FEET LOWER THAN DC1868'THE STATION MARK. DC1868' DC1868'REFERENCE MARK 3, A STANDARD DISK STAMPED CARRIZO NO 3 1935, DC1868'IS SET IN A DRILL HOLE IN OUTCROPPING BEDROCK. IT IS LOCATED DC1868'ON THE HIGHEST POINT OF A LOW, FLAT RIDGE THAT IS ABOUT DC1868'300 FEET LOWER THAN THE STATION MARK. THE RIDGE IS LIGHT DC1868'COLORED ON TOP. DC1868' DC1868'B.M. (USGS) IS A U.S. GEOLOGICAL SURVEY BRONZE DISK SET IN DC1868'A DRILL HOLE IN OUTCROPPING BEDROCK. THE MARK IS NOT STAMPED DC1868'AND IS ABOUT THE SAME ELEVATION AS THE STATION MARK. DC1868 DC1868 STATION RECOVERY (1967) DC1868 DC1868'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1967 (CAA) DC1868'THE STATION MARK, REFERENCE MARKS 1 AND 2, THE AZIMUTH MARK AND DC1868'BM (USGS) WERE ALL RECOVERED AND FOUND IN GOOD CONDITION. DUE DC1868'TO ROAD CHANGES IN THE AREA A NEW AND COMPLETE DESCRIPTION FOLLOWS. DC1868' DC1868'THE STATION IS LOCATED ON THE HIGHEST POINT OF CARRIZO MOUNTAIN, DC1868'8 MILES NORTH BY WEST OF COYOTE WELLS AND 5 MILES EAST OF SAN DC1868'DIEGO-IMPERIAL COUNTY LINE. DC1868' DC1868'THE STATION MARK IS A STANDARD DISK STAMPED CARRIZO 1924. IT DC1868'IS SET IN A DRILL HOLE IN A ROCK OUTCROP ON THE HIGHEST POINT DC1868'OF THE MOUNTAIN. DC1868' DC1868'REFERENCE MARK 1 IS A STANDARD DISK STAMPED CARRIZO NO 1 1935. IT DC1868'IS SET IN A DRILL HOLE IN BEDROCK WHICH IS ABOUT 10 FEET LOWER DC1868'THAN THE STATION. DC1868' DC1868'RM (1924) IS A STANDARD DISK STAMPED, CARRIZO 1924. IT IS SET DC1868'IN A DRILL HOLE IN AN OUTCROP OF ROCK WHICH IS ABOUT 10 FEET DC1868'LOWER THAN THE STATION. DC1868' DC1868'THE AZIMUTH MARK IS A STANDARD REFERENCE MARK DISK STAMPED, DC1868'CARRIZO NO 3 1935. IT IS SET IN A DRILL HOLE IN ROCK JUST BELOW DC1868'THE HIGHEST POINT OF A LOW RIDGE WHICH IS LIGHT BROWN IN COLOR. A DC1868'NEW ROAD WHICH LEADS FROM THE VICINITY OF THE END OF TRUCK PASSES DC1868'JUST BELOW THE MARK. DC1868' DC1868'B.M. (USGS) IS A U.S. GEOLOGICAL BENCH MARK SET IN A DRILL HOLE DC1868'IN THE SAME OUTCROP OF BEDROCK AS THE STATION. DC1868' DC1868'TO REACH THE STATION FROM THE POST OFFICE IN SEELEY GO WEST DC1868'ALONG U.S. HIGHWAY 80 FOR 9.3 MILES TO PLASTER CITY, CONTINUE DC1868'WEST FOR 5.2 MILES TO A SIDE ROAD RIGHT AT SIGN PAINTED DC1868'GORGE. TURN RIGHT AND FOLLOW MAIN ROAD AND GO NORTH AND WEST DC1868'FOR 6.6 MILES TO A FORK. TAKE THE RIGHT FORK LEADING UPHILL DC1868'FOR 2.0 MILES TO A FORK. TAKE THE RIGHT FORK FOR 0.05 MILE TO DC1868'A FORK. TAKE THE LEFT FORK FOR 0.25 MILE TO END OF TRUCK DC1868'TRAVEL. THIS IS THE END OF THE ROAD AT THIS TIME. HOWEVER DC1868'THE ROAD IS UNDER CONSTRUCTION AND IT IS EXPECTED TO LEAD TO DC1868'THE TOP OF THE MOUNTAIN AND STATION VERY SOON. PACK NORTH UP DC1868'HILL TO A SADDLE, CONTINUE ALONG THE EAST SIDE OF A DC1868'NORTH-SOUTH RIDGE FOR ABOUT 1/4 MILE CROSSING A STEEP ROUGH DC1868'AREA, BEAR TO THE LEFT AND CLIMB TO THE TOP OF THE RIDGE. DC1868'FOLLOW THE RIDGE NORTH TO A STEEP POINT AT THE END, CONTINUE DC1868'NORTH UP SMALL WASH TO THE TOP OF THE MOUNTAIN AND THE DC1868'STATION. A 1 HOUR PACK AND A 4-WHEEL DRIVE REQUIRED. DC1868' DC1868'HEIGHT OF LIGHT ABOVE STATION MARK 4 FEET. DC1868' DC1868'AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN DC1868'8 MILES NORTH BY WEST OF COYOTE WELLS.