National Geodetic Survey, Retrieval Date = APRIL 26, 2000 EU0920 *********************************************************************** EU0920 DESIGNATION - POWELL EU0920 PID - EU0920 EU0920 STATE/COUNTY- AZ/MOHAVE EU0920 USGS QUAD - CROSSMAN PEAK (1983) EU0920 EU0920 *CURRENT SURVEY CONTROL EU0920 ___________________________________________________________________ EU0920* NAD 83(1992)- 34 32 55.98035(N) 114 11 18.74364(W) ADJUSTED EU0920* NAVD 88 - 1556.2 (meters) 5106. (feet) VERTCON EU0920 ___________________________________________________________________ EU0920 EPOCH DATE - 1991.35 EU0920 LAPLACE CORR- 3.47 (seconds) DEFLEC99 EU0920 GEOID HEIGHT- -30.12 (meters) GEOID99 EU0920 EU0920 HORZ ORDER - FIRST EU0920 EU0920.The horizontal coordinates were established by classical geodetic methods EU0920.and adjusted by the National Geodetic Survey in June 1996. EU0920.The horizontal coordinates are valid at the epoch date displayed above. EU0920.The epoch date for horizontal control is a decimal equivalence EU0920.of Year/Month/Day. EU0920 EU0920.The NAVD 88 height was computed by applying the VERTCON shift value to EU0920.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) EU0920 EU0920.The Laplace correction was computed from DEFLEC99 derived deflections. EU0920 EU0920.The geoid height was determined by GEOID99. EU0920 EU0920; North East Units Scale Converg. EU0920;SPC AZ W - 393,634.423 173,110.569 MT 0.99995329 -0 14 55.3 EU0920;UTM 11 - 3,826,609.115 757,987.647 MT 1.00042046 +1 35 43.0 EU0920 EU0920: Primary Azimuth Mark Grid Az EU0920:SPC AZ W - POWELL AZ MK 004 35 14.3 EU0920:UTM 11 - POWELL AZ MK 002 44 36.0 EU0920 EU0920|---------------------------------------------------------------------| EU0920| PID Reference Object Distance Geod. Az | EU0920| dddmmss.s | EU0920| FS1041 PEAK F APPROX.94.3 KM 0024535.1 | EU0920| POWELL AZ MK 0042019.0 | EU0920| FR0972 PEAK H APPROX.64.2 KM 0242441.0 | EU0920| ET1024 PEAK I APPROX.92.5 KM 0610835.8 | EU0920| ET0977 PEAK N 1003220.7 | EU0920| POWELL RM 1 4.724 METERS 11038 | EU0920| POWELL RM 2 5.609 METERS 20105 | EU0920| POWELL RM 5.620 METERS 20111 | EU0920| EU1188 PEAK A 2813235.6 | EU0920| FS1259 PEAK C 3074930.9 | EU0920| FS1184 PEAK D 3223345.5 | EU0920|---------------------------------------------------------------------| EU0920 EU0920 SUPERSEDED SURVEY CONTROL EU0920 EU0920 NAD 83(1992)- 34 32 55.97712(N) 114 11 18.75046(W) AD( ) 1 EU0920 NAD 83(1986)- 34 32 55.97893(N) 114 11 18.75918(W) AD( ) 1 EU0920 NAD 27 - 34 32 55.93600(N) 114 11 15.93600(W) AD( ) 1 EU0920 NGVD 29 - 1555.4 (m) 5103. (f) VERT ANG EU0920 EU0920.Superseded values are not recommended for survey control. EU0920.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. EU0920.See file dsdata.txt to determine how the superseded data were derived. EU0920 EU0920 HISTORY - Date Condition Recov. By EU0920 HISTORY - 1910 MONUMENTED CGS EU0920 HISTORY - 1935 GOOD CGS EU0920 HISTORY - 1948 GOOD CGS EU0920 EU0920 STATION DESCRIPTION EU0920 EU0920'DESCRIBED BY COAST AND GEODETIC SURVEY 1935 (JSH) EU0920'ON HIGHER AND MORE EASTERLY OF TWO PEAKS (KNOWN LOCALLY AS EU0920'POWELL PEAK) ON ARIZONA BRANCH OF THE CHEMEHUEVIS MOUNTAINS, EU0920'15 MILES S 20 DEG E FROM FRANCONIA, AND 30 MILES S 51 DEG EU0920'E OF NEEDLES. EU0920' EU0920'TO REACH FROM TOPOCK, TAKE DIRT ROAD ON S SIDE OF RAILROAD EU0920'TRACK AND FOLLOW MAIN TRAVELED ROAD (NOT TURNING TO RIGHT) EU0920'E 11 MILES, TURN S ONTO WELL DEFINED ROAD TOWARD COLORADO EU0920'RIVER AND FOLLOW MAIN ROAD (KEEPING RIGHT) ABOUT 18 OR 19 EU0920'MILES TO ROAD TURNING LEFT (NORTHEAST) TOWARD FALLS SPRINGS EU0920'MINES, FOLLOW THIS ROAD ABOUT 7 MILES TO CROSSROAD GOING DOWN EU0920'INTO WASH ON NW, ENTER WASH AND FOLLOW ROAD UP WASH 2 MILES EU0920'TO FALLS SPRINGS MINE CAMP, CONTINUE TO END OF WASH AND EU0920'CLIMB RIDGE ON NW SIDE TO PEAK AND STATION SITE. EU0920' EU0920'STATION MARKED BY STANDARD STATION DISK CEMENTED IN DRILL EU0920'HOLE IN BEDROCK. EU0920' EU0920'REFERENCE MARK IS CROSS CUT IN SOLID ROCK, 2 FEET LOWER EU0920'THAN AND 5.62 METERS (18.4 FEET) FROM STATION S 21 DEG EU0920'11 MIN W. EU0920' EU0920'IN 1935 TWO REFERENCE MARKS WERE ESTABLISHED (PROBABLY STANDARD EU0920'REFERENCE DISKS IN BEDROCK). NO. 1 IS 4.660 METERS (15.29 EU0920'FEET) FROM STATION. NO. 2 IS EU0920'5.562 METERS (18.25 FEET) FROM STATION. EU0920 EU0920 STATION RECOVERY (1948) EU0920 EU0920'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1948 (FAR) EU0920'THE STATION MARK AND TWO REFERENCE MARKS ARE IN GOOD CONDITION. EU0920'A NEW AZIMUTH MARK WAS ESTABLISHED AND IS DESCRIBED BELOW. EU0920' EU0920'THE STATION IS ON THE SUMMIT OF THE HIGHER AND MOST EASTERLY EU0920'OF TWO PEAKS (KNOWN LOCALLY AS POWELL PEAK) IN THE CHEMEHUEVIS EU0920'MOUNTAIN RANGE. IT IS 20-1/2 MILES, AIRLINE, SOUTHEAST OF TOPOCK, EU0920'AND 23-3/4 MILES, AIRLINE, SOUTH-SOUTHWEST OF YUCCA. THIS EU0920'IS THE HIGHEST POINT IN THE VICINITY. EU0920' EU0920'THE STATION MARK, A STANDARD DISK CEMENTED IN A DRILL HOLE EU0920'IN BEDROCK, FLUSH WITH THE SURROUNDING SURFACE, IS STAMPED EU0920'POWELL 1910. EU0920' EU0920'REFERENCE MARK NO. 1, A STANDARD DISK CEMENTED IN A DRILL EU0920'HOLE IN A MASS OF OUTCROPPING BEDROCK, PROJECTING 4 FEET EU0920'ON THE SOUTHEAST SIDE AND 8 INCHES ON THE OTHER SIDES, IS EU0920'2 FEET LOWER IN ELEVATION THAN THE STATION MARK. IT IS STAMPED EU0920'POWELL NO 1 1910 1934. EU0920' EU0920'REFERENCE MARK NO. 2, A STANDARD DISK CEMENTED IN A DRILL EU0920'HOLE IN A MASS OF OUTCROPPING BEDROCK, PROJECTING 18 INCHES EU0920'ON THE EAST SIDE AND 6 INCHES ON THE WEST, IS 3 FEET LOWER EU0920'IN ELEVATION THAN THE STATION MARK. IT IS STAMPED POWELL EU0920'NO 2 1910 1934. EU0920' EU0920'THE AZIMUTH MARK, A STANDARD DISK CEMENTED IN A HUGE MASS OF EU0920'OUTCROPPING WHITE BEDROCK IS STAMPED POWELL 1948. IT IS ON EU0920'THE SAME RIDGE AS THE STATION ABOUT 200 FEET LOWER IN ELEVATION, EU0920'10 FEET WEST OF A 4 FT. ROCK CAIRN WHICH IS APPROXIMATELY 3 EU0920'FEET LOWER IN ELEVATION THAN THE AZIMUTH MARK. EU0920' EU0920'TO REACH THE STATION FROM YUCCA GO SOUTHERLY ON THE TOPOCK EU0920'ROAD FOR 5.9 MILES TO A FORK AND SIGN DUTCH FLAT. TAKE THE EU0920'LEFT HAND ROAD AND GO 3.2 MILES TO A FORK AND SIGN DUTCH FLAT. EU0920'TAKE THE RIGHT HAND ROAD, MAIN TRAVELED, AND GO 6.7 MILES EU0920'TO A CATTLE GUARD. PASS THROUGH AND CONTINUE 1.9 MILES EU0920'TO A GATE JUST SOUTHWEST OF AN OLD ABANDONED RANCH. PASS EU0920'THROUGH THE GATE AND TURN RIGHT, WEST, ON A TRACK ROAD. GO EU0920'WEST 1.0 MILE TO A WIRE GATE. PASS THROUGH THE GATE AND EU0920'CONTINUE WESTERLY ON THE TRACK ROAD FOR 5.1 MILES TO A FORK. EU0920'TAKE THE LEFT HAND ROAD SOUTHWESTERLY UP A CANYON 1.8 MILES EU0920'TO THE END OF TRUCK TRAVEL. FROM HERE PACK WESTERLY ON A DIM EU0920'TRAIL UP A WASH FOR ABOUT 2 MILES. AT THIS POINT THE TRAIL EU0920'LEAVES THE WASH AND BEARS WESTERLY UP A RIDGE. FOLLOW THE EU0920'TRAIL WESTERLY UP RIDGE ABOUT 3/4 MILE TO THE TOP THENCE EU0920'SOUTHERLY 3/4 MILE TO A MINE SHAFT WHERE THE TRAIL ENDS. EU0920'FROM HERE PACK WESTERLY UP A VERY STEEP RIDGE ABOUT 200 EU0920'YARDS TO THE SUMMIT OF THE MOUNTAIN AND THE STATION. A 3 EU0920'1/2 HOUR PACK.