1 National Geodetic Survey, Retrieval Date = MARCH 4, 2003 PT0837 *********************************************************************** PT0837 DESIGNATION - D 21 RESET PT0837 PID - PT0837 PT0837 STATE/COUNTY- SD/ZIEBACH PT0837 USGS QUAD - RATTLESNAKE LAKE NE (1955) PT0837 PT0837 *CURRENT SURVEY CONTROL PT0837 ___________________________________________________________________ PT0837* NAD 83(1986)- 44 43 18. (N) 101 34 19. (W) SCALED PT0837* NAVD 88 - 694.88 (meters) 2279.8 (feet) RESET PT0837 ___________________________________________________________________ PT0837 GEOID HEIGHT- -20.98 (meters) GEOID99 PT0837 PT0837 VERT ORDER - THIRD PT0837 PT0837.The horizontal coordinates were scaled from a topographic map and have PT0837.an estimated accuracy of +/- 6 seconds. PT0837 PT0837.The orthometric height was computed from unverified reset data. PT0837 PT0837.The geoid height was determined by GEOID99. PT0837 PT0837; North East Units Estimated Accuracy PT0837;SPC SD N - 99,920. 475,470. MT (+/- 180 meters Scaled) PT0837 PT0837 SUPERSEDED SURVEY CONTROL PT0837 PT0837.No superseded survey control is available for this station. PT0837 PT0837_U.S. NATIONAL GRID SPATIAL ADDRESS: 14TKQ963552(NAD 83) PT0837_MARKER: DB = BENCH MARK DISK PT0837_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT PT0837_STAMPING: D 21 RESET 1956 PT0837_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO PT0837+STABILITY: SURFACE MOTION PT0837 PT0837 HISTORY - Date Condition Report By PT0837 HISTORY - 1956 MONUMENTED CGS PT0837 PT0837 STATION DESCRIPTION PT0837 PT0837'DESCRIBED BY COAST AND GEODETIC SURVEY 1956 PT0837'10 MI N FROM CHERRY CREEK. PT0837'10 MILES NORTH ALONG THE DUPREE ROAD FROM CHERRY CREEK, PT0837'ZIEBACH COUNTY, 0.2 MILE NORTH OF A CURVE AND 50 FEET WEST OF PT0837'THE CENTERLINE OF THE NEW ROAD. A STANDARD DISK, STAMPED D 21 PT0837'RESET 1956 AND SET IN THE TOP OF A CONCRETE POST PROJECTING 6 PT0837'INCHES. 1 National Geodetic Survey, Retrieval Date = MARCH 4, 2003 QS0494 *********************************************************************** QS0494 DESIGNATION - W 30 RESET QS0494 PID - QS0494 QS0494 STATE/COUNTY- SD/ZIEBACH QS0494 USGS QUAD - IRISH CREEK NE (1983) QS0494 QS0494 *CURRENT SURVEY CONTROL QS0494 ___________________________________________________________________ QS0494* NAD 83(1986)- 45 23 08. (N) 101 36 51. (W) SCALED QS0494* NAVD 88 - 722.030 (meters) 2368.86 (feet) ADJUSTED QS0494 ___________________________________________________________________ QS0494 GEOID HEIGHT- -20.10 (meters) GEOID99 QS0494 DYNAMIC HT - 721.921 (meters) 2368.50 (feet) COMP QS0494 MODELED GRAV- 980,441.7 (mgal) NAVD 88 QS0494 QS0494 VERT ORDER - FIRST CLASS II QS0494 QS0494.The horizontal coordinates were scaled from a topographic map and have QS0494.an estimated accuracy of +/- 6 seconds. QS0494 QS0494.The orthometric height was determined by differential leveling QS0494.and adjusted by the National Geodetic Survey in April 2000. QS0494 QS0494.The geoid height was determined by GEOID99. QS0494 QS0494.The dynamic height is computed by dividing the NAVD 88 QS0494.geopotential number by the normal gravity value computed on the QS0494.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 QS0494.degrees latitude (g = 980.6199 gals.). QS0494 QS0494.The modeled gravity was interpolated from observed gravity values. QS0494 QS0494; North East Units Estimated Accuracy QS0494;SPC SD N - 173,750. 473,600. MT (+/- 180 meters Scaled) QS0494 QS0494 SUPERSEDED SURVEY CONTROL QS0494 QS0494 NGVD 29 - 721.57 (m) 2367.4 (f) RESET 3 QS0494 QS0494.Superseded values are not recommended for survey control. QS0494.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. QS0494.See file dsdata.txt to determine how the superseded data were derived. QS0494 QS0494_U.S. NATIONAL GRID SPATIAL ADDRESS: 14TKR953291(NAD 83) QS0494_MARKER: DV = VERTICAL CONTROL DISK QS0494_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT QS0494_STAMPING: W 30 RESET 1974 QS0494_MARK LOGO: NGS QS0494_MAGNETIC: N = NO MAGNETIC MATERIAL QS0494_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO QS0494+STABILITY: SURFACE MOTION QS0494_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR QS0494+SATELLITE: SATELLITE OBSERVATIONS - June 22, 1999 QS0494 QS0494 HISTORY - Date Condition Report By QS0494 HISTORY - 1974 MONUMENTED NGS QS0494 HISTORY - 1979 GOOD USGS QS0494 HISTORY - 19990622 GOOD NGS QS0494 QS0494 STATION DESCRIPTION QS0494 QS0494'DESCRIBED BY NATIONAL GEODETIC SURVEY 1974 QS0494'9.5 MI W FROM ISABEL. QS0494'FROM THE JUNCTION OF STATE HIGHWAYS 20 AND 65 WHICH IS 3-MILES QS0494'WEST OF ISABEL, GO WEST ON HIGHWAY 20 FOR 6.3 MILES TO THE QS0494'CREST OF A HILL AND THE MARK ON THE RIGHT IN A PASTURE ON QS0494'PROPERTY OF MR. ADOLF BEER WHO LIVES ABOUT 1-1/2 MILES WEST. QS0494'THE MARK IS AT STATE HIGHWAY STATION 254 + 70, 252 FEET NORTH QS0494'OF THE CENTER OF THE HIGHWAY, 1.7 FEET EAST OF A METAL WITNESS QS0494'POST, AND SET IN THE TOP OF A ROUND CONCRETE MONUMENT WHICH QS0494'PROJECTS 1-INCH. QS0494 QS0494 STATION RECOVERY (1979) QS0494 QS0494'RECOVERY NOTE BY US GEOLOGICAL SURVEY 1979 QS0494'ISABEL, ABOUT 8.8 MILES W. OF ALONG STATE HWY 20, AT THE SUMMIT OF A QS0494'SMALL HILL, ABOUT 250 FEET NORTH OF HWY, ABOUT 1200 FEET ESE OF RADIO QS0494'TOWER, A STANDARD TABLET, STAMPED W 30 1934 RESET 1974. NO ELEVATION QS0494'AVAILABLE. QS0494 QS0494 STATION RECOVERY (1999) QS0494 QS0494'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1999 (GAS) QS0494'15.0 KM (9.30 MI) WESTERLY ALONG STATE HIGHWAY 20 FROM THE POST OFFICE QS0494'IN ISABEL, 474.2 M (1555.8 FT) EAST OF MILEPOST 131, 77.0 M (252.6 FT) QS0494'NORTH OF THE HIGHWAY CENTERLINE, 47.8 M (156.8 FT) NORTHEAST OF A QS0494'UTILITY POLE, 46.2 M (151.6 FT) NORTH OF A WITNESS POST AND FENCE, 4.0 QS0494'M (13.1 FT) ABOVE THE LEVEL OF THE HIGHWAY, AND THE MONUMENT IS FLUSH QS0494'WITH THE GROUND SURFACE. NOTE--THE MONUMENT IS ON PROPERTY OWNED BY QS0494'ADOLPH BEER, BOX 237, ISABEL, SD 57633. 1 National Geodetic Survey, Retrieval Date = MARCH 4, 2003 QS0496 *********************************************************************** QS0496 DESIGNATION - X 30 RESET QS0496 PID - QS0496 QS0496 STATE/COUNTY- SD/ZIEBACH QS0496 USGS QUAD - IRISH CREEK NW (1982) QS0496 QS0496 *CURRENT SURVEY CONTROL QS0496 ___________________________________________________________________ QS0496* NAD 83(1986)- 45 23 09. (N) 101 39 14. (W) SCALED QS0496* NAVD 88 - 699.648 (meters) 2295.43 (feet) ADJUSTED QS0496 ___________________________________________________________________ QS0496 GEOID HEIGHT- -20.02 (meters) GEOID99 QS0496 DYNAMIC HT - 699.540 (meters) 2295.07 (feet) COMP QS0496 MODELED GRAV- 980,440.1 (mgal) NAVD 88 QS0496 QS0496 VERT ORDER - FIRST CLASS II QS0496 QS0496.The horizontal coordinates were scaled from a topographic map and have QS0496.an estimated accuracy of +/- 6 seconds. QS0496 QS0496.The orthometric height was determined by differential leveling QS0496.and adjusted by the National Geodetic Survey in April 2000. QS0496 QS0496.The geoid height was determined by GEOID99. QS0496 QS0496.The dynamic height is computed by dividing the NAVD 88 QS0496.geopotential number by the normal gravity value computed on the QS0496.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 QS0496.degrees latitude (g = 980.6199 gals.). QS0496 QS0496.The modeled gravity was interpolated from observed gravity values. QS0496 QS0496; North East Units Estimated Accuracy QS0496;SPC SD N - 173,840. 470,490. MT (+/- 180 meters Scaled) QS0496 QS0496 SUPERSEDED SURVEY CONTROL QS0496 QS0496 NGVD 29 - 699.21 (m) 2294.0 (f) RESET 3 QS0496 QS0496.Superseded values are not recommended for survey control. QS0496.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. QS0496.See file dsdata.txt to determine how the superseded data were derived. QS0496 QS0496_U.S. NATIONAL GRID SPATIAL ADDRESS: 14TKR922292(NAD 83) QS0496_MARKER: DV = VERTICAL CONTROL DISK QS0496_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT QS0496_STAMPING: X 30 RESET 1974 QS0496_MARK LOGO: NGS QS0496_MAGNETIC: N = NO MAGNETIC MATERIAL QS0496_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO QS0496+STABILITY: SURFACE MOTION QS0496_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR QS0496+SATELLITE: SATELLITE OBSERVATIONS - June 22, 1999 QS0496 QS0496 HISTORY - Date Condition Report By QS0496 HISTORY - 1974 MONUMENTED NGS QS0496 HISTORY - 19990622 GOOD NGS QS0496 QS0496 STATION DESCRIPTION QS0496 QS0496'DESCRIBED BY NATIONAL GEODETIC SURVEY 1974 QS0496'6.5 MI E FROM GLAD VALLEY. QS0496'ABOUT 6.5 MILES EAST ALONG STATE HIGHWAY 20 FROM GLAD VALLEY, QS0496'0.2 MILE WEST OF A LARGE HIGHWAY CUT AND TRIANGULATION STATION QS0496'REEVES 2 1974, 100 FEET SOUTH OF THE CENTER OF THE HIGHWAY, QS0496'2.0 FEET EAST OF A METAL WITNESS POST, 1 FOOT NORTH OF THE QS0496'SOUTH RIGHT-OF-WAY FENCE, AT STATE HIGHWAY STATION 147 + 19, QS0496'AND SET IN THE TOP OF A ROUND CONCRETE MONUMENT WHICH PROJECTS QS0496'4-INCHES. QS0496 QS0496 STATION RECOVERY (1999) QS0496 QS0496'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1999 (GAS) QS0496'18.3 KM (11.35 MI) WESTERLY ALONG STATE HIGHWAY 20 FROM THE POST QS0496'OFFICE IN ISABEL, 477.0 M (1565.0 FT) EAST OF MILEPOST 129, 31.5 M QS0496'(103.3 FT) EAST OF UNDERGROUND CABLE JUNCTION BOX NUMBER W 30 T17W LP QS0496'15, 30.9 M (101.4 FT) SOUTH OF THE HIGHWAY CENTERLINE, 5.0 M (16.4 FT) QS0496'BELOW THE LEVEL OF THE HIGHWAY, 0.5 M (1.6 FT) EAST OF A WITNESS POST, QS0496'0.4 M (1.3 FT) NORTH OF A FENCE, AND THE MONUMENT IS FLUSH WITH THE QS0496'GROUND SURFACE. NOTE--THE MONUMENT IS ON HIGHWAY RIGHT-OF-WAY.