National Geodetic Survey, Retrieval Date = MAY 12, 2019 GQ0298 *********************************************************************** GQ0298 HT_MOD - This is a Height Modernization Survey Station. GQ0298 DESIGNATION - SIGNAL HILL GQ0298 PID - GQ0298 GQ0298 STATE/COUNTY- AZ/COCONINO GQ0298 COUNTRY - US GQ0298 USGS QUAD - HAVASUPAI POINT (1988) GQ0298 GQ0298 *CURRENT SURVEY CONTROL GQ0298 ______________________________________________________________________ GQ0298* NAD 83(2011) POSITION- 36 10 13.49415(N) 112 21 26.58322(W) ADJUSTED GQ0298* NAD 83(2011) ELLIP HT- 2042.378 (meters) (06/27/12) ADJUSTED GQ0298* NAD 83(2011) EPOCH - 2010.00 GQ0298* NAVD 88 ORTHO HEIGHT - 2065.65 (meters) 6777.1 (feet) GPS OBS GQ0298 ______________________________________________________________________ GQ0298 NAVD 88 orthometric height was determined with geoid model GEOID09 GQ0298 GEOID HEIGHT - -23.249 (meters) GEOID09 GQ0298 GEOID HEIGHT - -23.187 (meters) GEOID12B GQ0298 NAD 83(2011) X - -1,961,446.772 (meters) COMP GQ0298 NAD 83(2011) Y - -4,768,891.217 (meters) COMP GQ0298 NAD 83(2011) Z - 3,744,678.500 (meters) COMP GQ0298 LAPLACE CORR - -10.66 (seconds) DEFLEC12B GQ0298 GQ0298 Network accuracy estimates per FGDC Geospatial Positioning Accuracy GQ0298 Standards: GQ0298 FGDC (95% conf, cm) Standard deviation (cm) CorrNE GQ0298 Horiz Ellip SD_N SD_E SD_h (unitless) GQ0298 ------------------------------------------------------------------- GQ0298 NETWORK 0.25 0.55 0.11 0.09 0.28 -0.00001626 GQ0298 ------------------------------------------------------------------- GQ0298 Click here for local accuracies and other accuracy information. GQ0298 GQ0298 GQ0298.The horizontal coordinates were established by GPS observations GQ0298.and adjusted by the National Geodetic Survey in June 2012. GQ0298 GQ0298.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has GQ0298.been affixed to the stable North American tectonic plate. See GQ0298.NA2011 for more information. GQ0298 GQ0298.The horizontal coordinates are valid at the epoch date displayed above GQ0298.which is a decimal equivalence of Year/Month/Day. GQ0298 GQ0298.The orthometric height was determined by GPS observations and a GQ0298.high-resolution geoid model using precise GPS observation and GQ0298.processing techniques. GQ0298 GQ0298.Significant digits in the geoid height do not necessarily reflect accuracy. GQ0298.GEOID12B height accuracy estimate available here. GQ0298 GQ0298.The X, Y, and Z were computed from the position and the ellipsoidal ht. GQ0298 GQ0298.The Laplace correction was computed from DEFLEC12B derived deflections. GQ0298 GQ0298.The ellipsoidal height was determined by GPS observations GQ0298.and is referenced to NAD 83. GQ0298 GQ0298. The following values were computed from the NAD 83(2011) position. GQ0298 GQ0298; North East Units Scale Factor Converg. GQ0298;SPC AZ C - 573,510.346 173,712.793 MT 0.99991936 -0 15 36.4 GQ0298;SPC AZ C - 1,881,595.62 569,923.86 iFT 0.99991936 -0 15 36.4 GQ0298;UTM 12 - 4,003,703.782 377,922.439 MT 0.99978362 -0 48 04.4 GQ0298 GQ0298! - Elev Factor x Scale Factor = Combined Factor GQ0298!SPC AZ C - 0.99967956 x 0.99991936 = 0.99959894 GQ0298!UTM 12 - 0.99967956 x 0.99978362 = 0.99946325 GQ0298 GQ0298: Primary Azimuth Mark Grid Az GQ0298:SPC AZ C - SUBLIME 072 19 32.8 GQ0298:UTM 12 - SUBLIME 072 52 00.8 GQ0298 GQ0298_U.S. NATIONAL GRID SPATIAL ADDRESS: 12SUF7792203703(NAD 83) GQ0298 GQ0298|---------------------------------------------------------------------| GQ0298| PID Reference Object Distance Geod. Az | GQ0298| dddmmss.s | GQ0298| CH3368 SIGNAL HILL RM 1 10.985 METERS 02031 | GQ0298| GQ0297 SUBLIME APPROX.10.1 KM 0720356.4 | GQ0298| GQ0300 BASS 5.980 METERS 08138 | GQ0298| GQ0299 SIGNAL HILL LOOKOUT TOWER 9.000 METERS 09656 | GQ0298|---------------------------------------------------------------------| GQ0298 GQ0298 SUPERSEDED SURVEY CONTROL GQ0298 GQ0298 NAD 83(2007)- 36 10 13.49341(N) 112 21 26.58322(W) AD(2007.00) 0 GQ0298 ELLIP H (02/10/07) 2042.394 (m) GP(2007.00) GQ0298 NAD 83(1992)- 36 10 13.49336(N) 112 21 26.58295(W) AD( ) A GQ0298 ELLIP H (09/30/99) 2042.405 (m) GP( ) 3 1 GQ0298 NAD 83(1992)- 36 10 13.49187(N) 112 21 26.58340(W) AD( ) 1 GQ0298 NAD 83(1986)- 36 10 13.48614(N) 112 21 26.58429(W) AD( ) 1 GQ0298 NAD 27 - 36 10 13.55700(N) 112 21 23.94600(W) AD( ) 1 GQ0298 NAVD 88 (06/28/04) 2065.6 (m) GEOID03 model used GPS OBS GQ0298 NAVD 88 (09/30/99) 2065.6 (m) GEOID99 model used GPS OBS GQ0298 NGVD 29 (05/08/89) 2064.4 (m) 6773. (f) VERT ANG GQ0298 GQ0298.Superseded values are not recommended for survey control. GQ0298 GQ0298.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. GQ0298.See file dsdata.pdf to determine how the superseded data were derived. GQ0298 GQ0298_MARKER: DS = TRIANGULATION STATION DISK GQ0298_SETTING: 66 = SET IN ROCK OUTCROP GQ0298_STAMPING: SIGNAL HILL 1934 GQ0298_MARK LOGO: CGS GQ0298_MAGNETIC: N = NO MAGNETIC MATERIAL GQ0298_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD GQ0298+STABILITY: POSITION/ELEVATION WELL GQ0298_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR GQ0298+SATELLITE: SATELLITE OBSERVATIONS - September 28, 2010 GQ0298 GQ0298 HISTORY - Date Condition Report By GQ0298 HISTORY - 1934 MONUMENTED CGS GQ0298 HISTORY - 1952 GOOD CGS GQ0298 HISTORY - 1956 GOOD USGS GQ0298 HISTORY - 19990125 GOOD USGS GQ0298 HISTORY - 20030529 GOOD GRANCN GQ0298 HISTORY - 20090524 GOOD GRANCN GQ0298 HISTORY - 20100928 GOOD GRANCN GQ0298 GQ0298 STATION DESCRIPTION GQ0298 GQ0298'DESCRIBED BY COAST AND GEODETIC SURVEY 1934 (CP) GQ0298'STATION IS ON THE HIGHEST POINT OF SIGNAL HILL, ABOUT 1.5 GQ0298'MILES SW OF HAVASUAPI POINT, AND 3.5 MILES (AIR LINE) NE OF GQ0298'THE PASTURE RANGE STATION, AND THE HIGHEST POINT IN THE VICINITY. GQ0298' GQ0298'STATION AND REFERENCE MARKS ARE STANDARD BRONZE DISKS WEDGED GQ0298'IN DRILL HOLES IN OUTCROPPING BEDROCK. GQ0298' GQ0298'REACHED FROM GRAND CANYON VILLAGE AS FOLLOWS. GO W ON THE HILLTOP GQ0298'ROAD 22.2 MILES (PASSING ROWE WELLS AT 3.0 MILES) TURN RIGHT GQ0298'AS PER SIGN TO THE RANGER STATION AND FOLLOW THE MAIN-TRAVELED GQ0298'ROAD, 3.3 MILES, TURN RIGHT AND GO 2.1 MILES, TAKE RIGHT GQ0298'FORK AND GO 0.7 MILE, TURN RIGHT AND FOLLOW THE ROAD 1.0 GQ0298'MILE TO THE LOOKOUT TOWER AND STATION. STATION IS 9 METERS GQ0298'NW OF THE CENTER OF THE LOOKOUT TOWER. GQ0298 GQ0298 STATION RECOVERY (1952) GQ0298 GQ0298'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1952 (GES) GQ0298'STATION WAS RECOVERED AND ALL MARKS WERE FOUND IN GOOD CONDITION. GQ0298'THE ORIGINAL DESCRIPTION IS ADEQUATE TO REACH THE STATION. GQ0298 GQ0298 STATION RECOVERY (1956) GQ0298 GQ0298'RECOVERY NOTE BY US GEOLOGICAL SURVEY 1956 GQ0298'RECOVERED IN GOOD CONDITION. GQ0298' GQ0298'BASS USGS--STANDARD BRONZE TABLET, STAMPING UNKNOWN, CEMENTED IN GQ0298'FLAT LIMESTONE LEDGE. GQ0298 GQ0298 STATION RECOVERY (1999) GQ0298 GQ0298'RECOVERY NOTE BY US GEOLOGICAL SURVEY 1999 (FMG) GQ0298'RECOVERED AS DESCRIBED. GQ0298 GQ0298 STATION RECOVERY (2003) GQ0298 GQ0298'RECOVERY NOTE BY GRAND CANYON MONITORING AND RESEARCH 2003 GQ0298'RECOVERED AS DESCRIBED. GQ0298 GQ0298 STATION RECOVERY (2009) GQ0298 GQ0298'RECOVERY NOTE BY GRAND CANYON MONITORING AND RESEARCH 2009 (KK) GQ0298'RECOVERED IN GOOD CONDITION. GQ0298 GQ0298 STATION RECOVERY (2010) GQ0298 GQ0298'RECOVERY NOTE BY GRAND CANYON MONITORING AND RESEARCH 2010 (KAK) GQ0298'RECOVERED AS DESCRIBED.