National Geodetic Survey, Retrieval Date = JANUARY 11, 2003 KT1990 *********************************************************************** KT1990 DESIGNATION - IRON PEAK KT1990 PID - KT1990 KT1990 STATE/COUNTY- CA/MENDOCINO KT1990 USGS QUAD - IRON PEAK (1994) KT1990 KT1990 *CURRENT SURVEY CONTROL KT1990 ___________________________________________________________________ KT1990* NAD 83(1992)- 39 48 30.74065(N) 123 28 53.66072(W) ADJUSTED KT1990* NAVD 88 - 1369.2 (meters) 4492. (feet) VERTCON KT1990 ___________________________________________________________________ KT1990 EPOCH DATE - 1991.35 KT1990 LAPLACE CORR- 2.00 (seconds) DEFLEC99 KT1990 GEOID HEIGHT- -29.29 (meters) GEOID99 KT1990 KT1990 HORZ ORDER - SECOND KT1990 KT1990.The horizontal coordinates were established by classical geodetic methods KT1990.and adjusted by the National Geodetic Survey in March 1994. KT1990.The horizontal coordinates are valid at the epoch date displayed above. KT1990.The epoch date for horizontal control is a decimal equivalence KT1990.of Year/Month/Day. KT1990 KT1990.The NAVD 88 height was computed by applying the VERTCON shift value to KT1990.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) KT1990 KT1990.The Laplace correction was computed from DEFLEC99 derived deflections. KT1990 KT1990.The geoid height was determined by GEOID99. KT1990 KT1990; North East Units Scale Converg. KT1990;SPC CA 2 - 738,802.255 1,873,136.502 MT 0.99999443 -0 56 02.7 KT1990;SPC CA 2 - 2,423,887.06 6,145,448.67 sFT 0.99999443 -0 56 02.7 KT1990;UTM 10 - 4,406,618.190 458,778.457 MT 0.99962092 -0 18 29.9 KT1990 KT1990: Primary Azimuth Mark Grid Az KT1990:SPC CA 2 - CAHTO RESET 212 44 29.0 KT1990:UTM 10 - CAHTO RESET 212 06 56.2 KT1990 KT1990|---------------------------------------------------------------------| KT1990| PID Reference Object Distance Geod. Az | KT1990| dddmmss.s | KT1990| LU2182 KETTENPOM LOOKOUT TOWER APPROX.37.4 KM 0013249.9 | KT1990| LU2173 BLACK ROCK LOOKOUT TOWER APPROX.59.6 KM 0422109.0 | KT1990| KT1957 ANTHONY PEAK LOOKOUT TOWER APPROX.44.5 KM 0842608.3 | KT1990| DB5252 IRON PEAK RM 1 11.363 METERS 10011 | KT1990| KT1989 IRON PEAK LOOKOUT TOWER 16.920 METERS 10649 | KT1990| KT1950 HULL MOUNTAIN LOOKOUT TOWER APPROX.56.5 KM 1240356.8 | KT1990| KT2125 CAHTO RESET APPROX.15.9 KM 2114826.3 | KT1990| KT2124 CAHTO LOOKOUT TOWER APPROX.16.1 KM 2122008.2 | KT1990| DB5251 IRON PEAK AZ MK 3044300.2 | KT1990| DB5253 IRON PEAK RM 2 5.038 METERS 31136 | KT1990|---------------------------------------------------------------------| KT1990 KT1990 SUPERSEDED SURVEY CONTROL KT1990 KT1990 NAD 83(1986)- 39 48 30.73124(N) 123 28 53.65128(W) AD(1984.00) 2 KT1990 NAD 27 - 39 48 31.18000(N) 123 28 49.58100(W) AD( ) 2 KT1990 NGVD 29 - 1368.2 (m) 4489. (f) VERT ANG KT1990 KT1990.Superseded values are not recommended for survey control. KT1990.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. KT1990.See file dsdata.txt to determine how the superseded data were derived. KT1990 KT1990_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SDK5877806618(NAD 83) KT1990_MARKER: Z = SEE DESCRIPTION KT1990_SETTING: 0 = UNSPECIFIED SETTING KT1990 KT1990 HISTORY - Date Condition Report By KT1990 HISTORY - 1942 MONUMENTED CGS KT1990 HISTORY - 1955 SEE DESCRIPTION CGS KT1990 HISTORY - 1965 SEE DESCRIPTION CGS KT1990 KT1990 STATION DESCRIPTION KT1990 KT1990'DESCRIBED BY COAST AND GEODETIC SURVEY 1942 (JCS) KT1990'LOCATED ABOUT 8 MILES N OF LAYTONVILLE, 3-1/2 MILES E OF KT1990'U.S. HIGHWAY 101, 13 MILES WNW OF COVELO, AND ABOUT 1 MILE KT1990'ENE OF PROMINENT OUTCROP KNOWN AS WHITE ROCK. LOCATED ON KT1990'A SHARP BARREN REDDISH ROCKY PEAK KNOWN AS IRON PEAK AND ON THE KT1990'SAME POINT AS THE STATE FOREST SERVICE LOOKOUT HOUSE. IRON KT1990'PEAK IS THE MOST PROMINENT PEAK IN THIS VICINITY. KT1990' KT1990'STATION MARK IS A BRONZE DISK SET IN A DRILL HOLE IN A KT1990'ROCK OUTCROPPING AND STAMPED IRON PEAK 1942. LOCATED KT1990'ON A BARE ROCKY PEAK CALLED IRON PEAK, 11.53 FEET NE OF WIND KT1990'GAGE, 55.50 FEET (16.918 METERS) W OF IRON PEAK LOOKOUT HOUSE. KT1990' KT1990'NO UNDERGROUND MARK WAS SET. KT1990' KT1990'REFERENCE MARK NO. 1 IS A BRONZE DISK SET IN A DRILL HOLE IN KT1990'A ROCK OUTCROPPING AND STAMPED IRON PEAK NO. 1 1942. LOCATED KT1990'IN THE SAME OUTCROPPING AS THE STATION MARK AT THE N EDGE KT1990'OF THE HILL, AND 10.64 FEET W OF NW CORNER OF LOOKOUT HOUSE. KT1990' KT1990'REFERENCE MARK NO. 2 IS A BRONZE DISK SET IN A DRILL HOLE IN KT1990'A ROCK OUTCROPPING STAMPED IRON PEAK NO. 2 1942. LOCATED IN KT1990'THE SAME OUTCROPPING AS THE STATION MARK, 7.7 FEET NE OF KT1990'TELEPHONE POLE, 15.58 FEET N OF WIND GAGE, AND 72.03 FEET KT1990'W OF IRON PEAK LOOKOUT HOUSE. KT1990' KT1990'AZIMUTH MARK IS A BRONZE DISK SET IN A DRILL HOLE IN A ROCK KT1990'OUTCROPPING AND STAMPED IRON PEAK 1942. LOCATED ABOUT 3/4 KT1990'MILE NW OF STATION AT THE E SIDE OF THE MAIN-TRAVELED ROAD KT1990'LEADING TO THE STATION. MARK IS 5.550 METERS (18.21 FEET) KT1990'E OF CENTER LINE OF ROAD, AND IS 0.3 MILE N OF THE END OF KT1990'TRUCK TRAVEL. KT1990' KT1990'REACHED FROM LAYTONVILLE POST OFFICE BY GOING N ON U.S. HIGHWAY KT1990'101 FOR 9.8 MILES TO IRON PEAK LOOKOUT ROAD LEADING OFF THE KT1990'HIGHWAY TO THE RIGHT OR THE E. AT THIS POINT THERE ARE KT1990'MAIL BOXES AND SIGNS ATTACHED P.H. MC KENNA, NUSSBAUM RANCH, KT1990'IRON PEAK L.O. TURN RIGHT ON THE IRON PEAK LOOKOUT ROAD KT1990'AND FOLLOW THE MAIN-TRAVELED ROAD FOR 2.6 MILES TO FORKS. KT1990'TAKE THE LEFT FORK ON THE MAIN-TRAVELED ROAD FOR 1.2 MILES KT1990'TO FORKS. KEEP TO THE LEFT ON THE MAIN-TRAVELED ROAD AND KT1990'GO 1.4 MILES TO FORKS AND SIGN IRON PEAK L.O. TAKE THE KT1990'RIGHT FORK SHARP TO THE RIGHT OR THE IRON PEAK L.O. ROAD KT1990'EASTERLY FOR 2.1 MILES TO THE END OF TRUCK TRAVEL. FROM KT1990'HERE PACK TO THE TOP OF THE HILL AND THE STATION AND THE KT1990'IRON PEAK LOOKOUT HOUSE, FOLLOWING A GOOD TRAIL FOR ABOUT KT1990'350 YARDS. KT1990' KT1990'HEIGHT OF LIGHT ABOVE STATION MARK - 1.3 METERS. KT1990 KT1990 STATION RECOVERY (1955) KT1990 KT1990'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1955 (LTP) KT1990'LETTER OF MR. L.T. PETERSEN, DEPUTY STATE FORESTER, DEPARTMENT KT1990'OF NATURAL RESOURCES, DIVISION OF FORESTRY, SACRAMENTO 14, KT1990'CALIFORNIA, DATED 14 DECEMBER 1955-- KT1990' KT1990'THE ORIGINAL STATION WAS DESTROYED DURING CONSTRUCTION OPERATIONS, KT1990'BUT THE BRASS DISK WAS SALVAGED AND RESET BY CEMENTING INTO KT1990'A ROCK SLIGHTLY BELOW THE SURFACE OF A TURNAROUND AREA. THE KT1990'ORIGINAL DISK WAS SET IN THE SAME HORIZONTAL POSITION FROM KT1990'REFERENCE POINTS THAT WE SET PRIOR TO CONSTRUCTION OPERATIONS. KT1990 KT1990 STATION RECOVERY (1965) KT1990 KT1990'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1965 (EHS) KT1990'A CAREFUL SEARCH WAS MADE FOR THE STATION MARK RESET BY THE KT1990'STATE DIVISION OF FORESTRY IN 1955 BUT IT WAS NOT FOUND AND KT1990'HAS APPARENTLY BEEN GRADED OUT BY FURTHER CONSTRUCTION WORK KT1990'IN THE AREA. REFERENCE MARKS NUMBER 1 AND 2 WERE DESTROYED KT1990'IN 1955 DURING THE CONSTRUCTION. A SEARCH WAS MADE FOR KT1990'THE AZIMUTH MARK BUT IT WAS NOT FOUND AND HAS PROBABLY BEEN KT1990'DESTROYED BY ROAD CONSTRUCTION IN THE AREA.