National Geodetic Survey, Retrieval Date = AUGUST 4, 2016 RV0744 *********************************************************************** RV0744 DESIGNATION - BIG SNOWY RV0744 PID - RV0744 RV0744 STATE/COUNTY- MT/FERGUS RV0744 COUNTRY - US RV0744 USGS QUAD - HALF MOON CANYON (1995) RV0744 RV0744 *CURRENT SURVEY CONTROL RV0744 ______________________________________________________________________ RV0744* NAD 83(1992) POSITION- 46 45 07.18065(N) 109 18 51.20031(W) ADJUSTED RV0744* NAVD 88 ORTHO HEIGHT - 2646. (meters) 8681. (feet) SCALED RV0744 ______________________________________________________________________ RV0744 GEOID HEIGHT - -11.399 (meters) GEOID12B RV0744 LAPLACE CORR - 12.33 (seconds) DEFLEC12B RV0744 HORZ ORDER - SECOND RV0744 RV0744.The horizontal coordinates were established by classical geodetic methods RV0744.and adjusted by the National Geodetic Survey in July 1992. RV0744. RV0744.The orthometric height was scaled from a topographic map. RV0744 RV0744.Significant digits in the geoid height do not necessarily reflect accuracy. RV0744.GEOID12B height accuracy estimate available here. RV0744 RV0744.The Laplace correction was computed from DEFLEC12B derived deflections. RV0744 RV0744. The following values were computed from the NAD 83(1992) position. RV0744 RV0744; North East Units Scale Factor Converg. RV0744;SPC MT - 278,040.514 614,186.266 MT 0.99940293 +0 08 09.2 RV0744;SPC MT - 912,206.41 2,015,046.80 iFT 0.99940293 +0 08 09.2 RV0744;UTM 12 - 5,178,984.625 628,752.937 MT 0.99980376 +1 13 41.1 RV0744 RV0744! - Elev Factor x Scale Factor = Combined Factor RV0744!SPC MT - 0.99958716 x 0.99940293 = 0.99899033 RV0744!UTM 12 - 0.99958716 x 0.99980376 = 0.99939100 RV0744 RV0744 SUPERSEDED SURVEY CONTROL RV0744 RV0744 NAD 83(1986)- 46 45 07.17500(N) 109 18 51.17777(W) AD( ) 2 RV0744 NAD 27 - 46 45 07.30200(N) 109 18 48.53700(W) AD( ) 2 RV0744 RV0744.Superseded values are not recommended for survey control. RV0744 RV0744.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. RV0744.See file dsdata.txt to determine how the superseded data were derived. RV0744 RV0744_U.S. NATIONAL GRID SPATIAL ADDRESS: 12TXS2875278984(NAD 83) RV0744 RV0744_MARKER: DB = BENCH MARK DISK RV0744_SETTING: 66 = SET IN ROCK OUTCROP RV0744_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD RV0744+STABILITY: POSITION/ELEVATION WELL RV0744 RV0744 HISTORY - Date Condition Report By RV0744 HISTORY - 1949 MONUMENTED CGS RV0744 RV0744 STATION DESCRIPTION RV0744 RV0744'DESCRIBED BY COAST AND GEODETIC SURVEY 1949 (MJT) RV0744'STATION IS ABOUT 25 MILES EAST-SOUTHEAST OF LEWISTOWN, RV0744'ON A ROCKY PEAK LOCALLY KNOWN AS OLD BALDY, ON A MOUNTAIN RV0744'RANGE LOCALLY KNOWN AS BIG SNOWY. RV0744' RV0744'TO REACH THE STATION FROM THE FERGUS COUNTY HIGH SCHOOL IN RV0744'LEWISTOWN, GO SOUTHERLY ON 6TH. AVENUE (HEATH ROAD) 9.7 RV0744'MILES TO A FORK, BEAR RIGHT AND GO 1.0 MILE TO A FORK, BEAR RV0744'RIGHT, GO SOUTHWESTERLY 8.5 MILES TO A FORK AT A SIGN ROGER RV0744'R.S. 2 MILES, BEAR LEFT AND GO 10.4 MILES TO THE CREST OF RV0744'A HILL, A SIDE ROAD LEFT, A WOODS ROAD RIGHT, AND A SIGN NORTH RV0744'FORK, SOUTH FORK. TURN RIGHT, GO WESTERLY ON A DIM ROAD FOR RV0744'4.1 MILES TO THE END OF TRUCK TRAVEL. PACK WEST, SOUTHWEST, RV0744'AND WEST FOR 2.75 MILES TO THE STATION. A JEEP CAN BE DRIVEN RV0744'TO THE STATION. RV0744' RV0744'STATION DISK IS NOT STAMPED AND IT IS FLUSH WITH THE GROUND. RV0744' RV0744'REFERENCE MARK NO. 1 IS FLUSH WITH THE GROUND AND IT IS RV0744'STAMPED BIG SNOWY USGS NO 1 1949. RV0744' RV0744'REFERENCE MARK NO. 2 IS FLUSH WITH THE GROUND AND IT IS RV0744'STAMPED BIG SNOWY USGS NO 2 1949. RV0744' RV0744'ALL MARKS EXCEPT THE STATION MARK ARE STANDARD DISKS SET RV0744'IN DRILL HOLES IN BEDROCK. RV0744' RV0744'STATION MARK IS A STANDARD UNITED STATES GEOLOGICAL SURVEY RV0744'BENCH MARK DISK SET IN A DRILL HOLE IN BEDROCK. RV0744' RV0744'THE DISTANCE TO TRIANGULATION STATION BALDY WAS DETERMINED RV0744'BY A SHORT BASE.