National Geodetic Survey, Retrieval Date = NOVEMBER 1, 2004 HR2786 *********************************************************************** HR2786 DESIGNATION - BLACK MTN HR2786 PID - HR2786 HR2786 STATE/COUNTY- CA/FRESNO HR2786 USGS QUAD - AUBERRY (1983) HR2786 HR2786 *CURRENT SURVEY CONTROL HR2786 ___________________________________________________________________ HR2786* NAD 83(1992)- 37 00 47.51125(N) 119 27 08.30340(W) ADJUSTED HR2786* NAVD 88 - 1096.7 (meters) 3598. (feet) VERTCON HR2786 ___________________________________________________________________ HR2786 EPOCH DATE - 1991.35 HR2786 LAPLACE CORR- 13.22 (seconds) DEFLEC99 HR2786 GEOID HEIGHT- -29.66 (meters) GEOID03 HR2786 HR2786 HORZ ORDER - SECOND HR2786 HR2786.The horizontal coordinates were established by classical geodetic methods HR2786.and adjusted by the National Geodetic Survey in March 1994. HR2786.The horizontal coordinates are valid at the epoch date displayed above. HR2786.The epoch date for horizontal control is a decimal equivalence HR2786.of Year/Month/Day. HR2786 HR2786.The NAVD 88 height was computed by applying the VERTCON shift value to HR2786.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) HR2786 HR2786.The Laplace correction was computed from DEFLEC99 derived deflections. HR2786 HR2786.The geoid height was determined by GEOID03. HR2786 HR2786; North East Units Scale Factor Converg. HR2786;SPC CA 4 - 686,497.630 1,959,748.018 MT 0.99996355 -0 16 11.4 HR2786;SPC CA 4 - 2,252,284.31 6,429,606.62 sFT 0.99996355 -0 16 11.4 HR2786;UTM 11 - 4,099,148.191 281,822.629 MT 1.00018644 -1 28 36.7 HR2786 HR2786! - Elev Factor x Scale Factor = Combined Factor HR2786!SPC CA 4 - 0.99983258 x 0.99996355 = 0.99979613 HR2786!UTM 11 - 0.99983258 x 1.00018644 = 1.00001899 HR2786 HR2786: Primary Azimuth Mark Grid Az HR2786:SPC CA 4 - BLACK MTN AZ MK RESET 355 55 52.5 HR2786:UTM 11 - BLACK MTN AZ MK RESET 357 08 17.8 HR2786 HR2786|---------------------------------------------------------------------| HR2786| PID Reference Object Distance Geod. Az | HR2786| dddmmss.s | HR2786| HR2787 RADIO STATION KRFM TOWER APPROX. 7.3 KM 0123415.3 | HR2786| DA8766 BLACK MTN RM 2 5.436 METERS 09143 | HR2786| HR2790 BLACK MTN 13.873 METERS 14318 | HR2786| HR2788 BLACK MOUNTAIN LOH 13.908 METERS 14319 | HR2786| HR2789 BLACK MTN RM 1 S 16.640 METERS 16202 | HR2786| GT2033 FRESNO AIR TERMINAL BEACON APPROX.34.7 KM 2201509.4 | HR2786| GT2084 FRESNO CHANDLER AIRPORT BEACON APPROX.45.3 KM 2260024.6 | HR2786| GU3358 MADERA AIRPORT BEACON APPROX.58.6 KM 2674205.2 | HR2786| DA8765 BLACK MTN RM 1 W 7.374 METERS 26953 | HR2786| DA8764 BLACK MTN AZ MK RESET 3553941.1 | HR2786| DA8763 BLACK MTN AZ MK 3554729.5 | HR2786|---------------------------------------------------------------------| HR2786 HR2786 SUPERSEDED SURVEY CONTROL HR2786 HR2786 NAD 83(1986)- 37 00 47.51016(N) 119 27 08.30003(W) AD(1984.00) 2 HR2786 NAD 27 - 37 00 47.68974(N) 119 27 04.82736(W) AD( ) 2 HR2786 NGVD 29 (07/19/86) 1095.8 (m) 3595. (f) VERT ANG HR2786 HR2786.Superseded values are not recommended for survey control. HR2786.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. HR2786.See file dsdata.txt to determine how the superseded data were derived. HR2786 HR2786_U.S. NATIONAL GRID SPATIAL ADDRESS: 11SKA8182399148(NAD 83) HR2786_MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION HR2786_SETTING: 66 = SET IN ROCK OUTCROP HR2786 HR2786 HISTORY - Date Condition Report By HR2786 HISTORY - 1950 MONUMENTED CGS HR2786 HISTORY - 1956 SEE DESCRIPTION CGS HR2786 HISTORY - 1972 SEE DESCRIPTION LOCENG HR2786 HISTORY - 1973 SEE DESCRIPTION NGS HR2786 HR2786 STATION DESCRIPTION HR2786 HR2786'DESCRIBED BY COAST AND GEODETIC SURVEY 1950 (RJS) HR2786'THE STATION IS LOCATED ABOUT 10 MILES AIR LINE NORTHEAST OF HR2786'ACADEMY, ABOUT 6 MILES AIR LINE SOUTHEAST OF AUBERRY AND ABOUT HR2786'2-1/2 MILES AIR LINE WEST OF TOLLHOUSE, ON THE WEST END AND HR2786'HIGHEST POINT OF BLACK MTN. THE MARK IS 20 FEET SOUTH OF THE HR2786'CENTER OF A TRACK ROAD. IT PROJECTS ABOUT 18 INCHES ABOVE THE HR2786'GROUND SURFACE AND IS STAMPED BLACK MTN 1950. HR2786' HR2786'REFERENCE MARK NO. 1 IS APPROXIMATELY THE SAME ELEVATION AS THE HR2786'STATION MARK. IT PROJECTS 2 FEET ABOVE THE GROUND SURFACE AND IS HR2786'STAMPED BLACK MTN NO 1 1950. HR2786' HR2786'REFERENCE MARK NO. 1 (USGS) IS A U.S. GEOLOGICAL SURVEY BRONZE HR2786'REFERENCE MARK DISK SET FLUSH WITH THE TOP OF A LARGE CONCRETE HR2786'BLOCK WHICH FORMS THE PLATFORM FOR THE STAIRS THAT GO UP TO THE HR2786'LOOKOUT HOUSE. THE BLOCK PROJECTS ABOUT 4 FEET ABOVE THE GROUND HR2786'SURFACE. THE MARK IS STAMPED NO 1. HR2786' HR2786'BLACK MTN (USGS) IS A U.S. GEOLOGICAL SURVEY BRONZE BENCH MARK HR2786'DISK SET IN A DRILL HOLE IN THE TOP OF A SMALL BOULDER THAT HR2786'PROJECTS 4 INCHES ABOVE THE GROUND SURFACE. IT IS UNDER HR2786'THE APPROXIMATE CENTER OF THE BLACK MTN. LOOKOUT HOUSE AND STAMPED HR2786'BLACK MTN 1941. THIS MARK IS 0.22 METER HIGHER THAN THE STATION HR2786'MARK. HR2786' HR2786'THE BLACK MTN. LOOKOUT HOUSE IS A 15 X 15 FOOT SQUARE TWO STORY HR2786'BUILDING BUILT ON THE TOP OF A 4 LEGGED, 20 FOOT STEEL TOWER. HR2786'IT IS PAINTED WHITE WITH A GREEN ROOF. THE TOP-CENTER OF THE HR2786'HOUSE IS 13.27 METERS HIGHER THAN THE STATION MARK. HR2786' HR2786'THE AZIMUTH MARK IS A STANDARD BRONZE AZIMUTH MARK DISK SET IN HR2786'A DRILL HOLE IN THE SOUTHWEST CONCRETE ANCHOR BLOCK OF THE WATER HR2786'TANK AT THE SEIRRA HIGH SCHOOL. THE BLOCK PROJECTS ABOUT 10 HR2786'INCHES ABOVE THE GROUND SURFACE. THE MARK IS STAMPED BLACK HR2786'MTN 1950. HR2786' HR2786'TO REACH THE STATION FROM THE POST OFFICE IN TOLLHOUSE, GO SOUTH HR2786'ON STATE HIGHWAY 168 FOR 1.0 MILE TO A FORK AND SIGN SIERRA HIGH HR2786'SCHOOL 4. TURN RIGHT, WESTERLY, AND GO 3.7 MILES TO THE SEIRRA HR2786'HIGH SCHOOL AND THE AZIMUTH MARK AS DESCRIBED ABOVE. CONTINUE HR2786'WESTERLY ON THE PAVED ROAD FOR 0.85 MILE TO A SIDE ROAD LEFT AND HR2786'SIGN FIRE CONTROL ROAD F5. TURN LEFT, SOUTH, AND GO 0.45 MILE HR2786'TO A FORK. TAKE THE RIGHT FORK AND GO 0.6 MILE TO A FORK, A HR2786'GATE IN THE LEFT FORK AND A SIGN BLACK MTN LOOKOUT. TAKE THE HR2786'LEFT FORK, PASSING THROUGH THE GATE, AND GO 3.6 MILES TO THE HR2786'TOP OF THE MOUNTAIN, THE LOOKOUT HOUSE AND THE STATION AS HR2786'DESCRIBED ABOVE. HR2786 HR2786 STATION RECOVERY (1956) HR2786 HR2786'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1956 (NES) HR2786'THE STATION MARK, BLACK MTN (USGS), R.M. 1 (USGS), AND THE HR2786'AZIMUTH MARK WERE FOUND IN GOOD CONDITION AND AS DESCRIBED. HR2786'REFERENCE MARK NO. 1 (THE COAST AND GEODETIC SURVEY DISK) WAS HR2786'SEARCHED FOR BUT NOT FOUND. IT WAS APPARENTLY DESTROYED WHEN THE HR2786'ROAD NEAR THE STATION WAS WIDENED. THE ORIGINAL AZIMUTH MARK HR2786'WAS IN THE WAY OF NEW CONSTRUCTION AT THE SIERRA UNION HIGH HR2786'SCHOOL. A NEW AZIMUTH MARK WAS ESTABLISHED AND THE OLD AZIMUTH HR2786'MARK WAS THEN DESTROYED BY THIS PARTY. A DESCRIPTION OF THE HR2786'NEW MARK FOLLOWS-- HR2786' HR2786'THE AZIMUTH MARK, STAMPED BLACK MOUNTAIN 1950 RESET 1956, IS HR2786'A STANDARD BRONZE DISK SET FLUSH IN THE SURFACE OF THE SIDEWALK HR2786'WHICH RUNS ALONG THE EAST SIDE OF THE LIBRARY BUILDING OF THE HR2786'SIERRA UNION HIGH SCHOOL. IT IS 6 INCHES SOUTHEAST OF THE FLAG HR2786'POLE. HR2786 HR2786 STATION RECOVERY (1972) HR2786 HR2786'RECOVERY NOTE BY LOCAL ENGINEER (INDIVIDUAL OR FIRM) 1972 (DD) HR2786'STATION RECOVERED BY MC PHEETERS AND ASSOC. HR2786' HR2786'FIRE CONTROL ROAD F-(SIGN IS DOWN. TURN LEFT AT NEW BAPTIST CHURCH HR2786'SIGN BLACK MTN LOOKOUT IS DOWN AT GATE. GATE IS LOCKED (NEED KEY) HR2786' HR2786'ALL AZIMUTH MARKS ARE IN. ALL R.M.S ARE IN. HR2786 HR2786 STATION RECOVERY (1973) HR2786 HR2786'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1973 (CLN) HR2786'THE STATION MARK, R.M. 1 (USGS), AND THE AZIMUTH MARK SET IN 1956 HR2786'WERE RECOVERED IN GOOD CONDITION. THE BLACK MTN (USGS) DISK WAS HR2786'FOUND SOLID IN THE ROCK IT WAS IN BUT PART OF THE ROCK WAS HR2786'FOUND BROKEN AWAY FROM AROUND IT. IT WAS REINFORCED WITH CONCRETE HR2786'AND REFERENCE MARK 2 WAS SET ON THIS DATE. THE DIRECTION TO HR2786'R.M. 1 (USGS) MEASURED ON THIS DATE AGREED WITH THE 1950 HR2786'MEASUREMENT. SLIGHT DIFFERENCES WERE NOTED BETWEEN THE 1950 HR2786'MEASUREMENTS AND THE DISTANCES TO BLACK MTN (USGS) AND R.M. 1 HR2786'(USGS) AND THE DIRECTION TO BLACK MTN (USGS) MEASURED ON THIS HR2786'DATE. THE PREVIOUS DESCRIPTIONS ARE ADEQUATE WITH THE HR2786'FOLLOWING ADDITIONS-- HR2786' HR2786'TO REACH THE STATION SITE FROM THE POST OFFICE AT TOLL HOUSE GO HR2786'SOUTHWEST ON STATE HIGHWAY 168 FOR 1.0 MILE TO A FORK AT A SIGN HR2786'SIERRA HIGH SCHOOL 4 MILES. TAKE THE RIGHT FORK AND GO NORTHWEST HR2786'ON LODGE ROAD 3.8 MILES TO SIERRA HIGH SCHOOL AND THE AZIMUTH HR2786'MARK ON THE LEFT. CONTINUE NORTHWEST ON LODGE ROAD 0.8 MILE TO HR2786'A SIDE ROAD ON THE LEFT JUST EAST OF A BAPTIST CHURCH. TURN HR2786'LEFT AND GO SOUTH 1.7 MILES TO A LOCKED GATE. (A KEY MAY BE HR2786'OBTAINED FROM THE STATE FORESTRY FIRE STATION A HUMPHREYS HR2786'STATION ABOUT 4 MILES SOUTHWEST OF TOLL HOUSE.) PASS THROUGH HR2786'THE GATE AND GO SOUTH AND SOUTHEAST 3.1 MILES TO THE TOP OF HR2786'THE MOUNTAIN, THE BLACK MOUNTAIN LOOKOUT, AND THE STATION HR2786'SITE. HR2786' HR2786'REFERENCE MARK 2 IS A NGS REFERENCE MARK DISK STAMPED BLACK MTN HR2786'1950 NO 2 1973 CEMENTED IN A DRILL HOLE IN AN OUTCROPPING ROCK HR2786'PROJECTING 0.8 FOOT ABOVE THE GROUND AND IS 26.9 FEET NORTH OF THE HR2786'NORTHWEST LEG OF THE LOOKOUT TOWER AND ABOUT 1/2 FOOT LOWER THAN HR2786'THE STATION MARK. HR2786' HR2786'AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--2-1/2 MILES HR2786'WEST OF TOLL HOUSE