National Geodetic Survey, Retrieval Date = JULY 26, 2007 HT2558 *********************************************************************** HT2558 DESIGNATION - GRIZZLY HT2558 PID - HT2558 HT2558 STATE/COUNTY- CA/ALAMEDA HT2558 USGS QUAD - BRIONES VALLEY (1993) HT2558 HT2558 *CURRENT SURVEY CONTROL HT2558 ___________________________________________________________________ HT2558* NAD 83(1992)- 37 52 55.37763(N) 122 14 01.68102(W) ADJUSTED HT2558* NAVD 88 - 535.7 (meters) 1758. (feet) VERTCON HT2558 ___________________________________________________________________ HT2558 EPOCH DATE - 1991.35 HT2558 LAPLACE CORR- 2.60 (seconds) DEFLEC99 HT2558 GEOID HEIGHT- -32.17 (meters) GEOID03 HT2558 HT2558 HORZ ORDER - FIRST HT2558 HT2558.The horizontal coordinates were established by classical geodetic methods HT2558.and adjusted by the National Geodetic Survey in March 1994. HT2558.The horizontal coordinates are valid at the epoch date displayed above. HT2558.The epoch date for horizontal control is a decimal equivalence HT2558.of Year/Month/Day. HT2558 HT2558.The NAVD 88 height was computed by applying the VERTCON shift value to HT2558.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) HT2558 HT2558.The Laplace correction was computed from DEFLEC99 derived deflections. HT2558 HT2558.The geoid height was determined by GEOID03. HT2558 HT2558; North East Units Scale Factor Converg. HT2558;SPC CA 3 - 654,794.402 1,847,491.599 MT 0.99993178 -1 03 41.4 HT2558;SPC CA 3 - 2,148,271.30 6,061,312.02 sFT 0.99993178 -1 03 41.4 HT2558;UTM 10 - 4,193,004.924 567,378.389 MT 0.99965591 +0 28 13.8 HT2558 HT2558! - Elev Factor x Scale Factor = Combined Factor HT2558!SPC CA 3 - 0.99992100 x 0.99993178 = 0.99985279 HT2558!UTM 10 - 0.99992100 x 0.99965591 = 0.99957694 HT2558 HT2558|---------------------------------------------------------------------| HT2558| PID Reference Object Distance Geod. Az | HT2558| dddmmss.s | HT2558| DB2391 GRIZZLY RM 1 8.511 METERS 04238 | HT2558| HT2550 BALD PEAK APPROX. 1.1 KM 0804930.5 | HT2558| HT2560 GRIZZLY PEAK LOOKOUT TOWER 11.926 METERS 10028 | HT2558| DB2392 GRIZZLY RM 2 9.070 METERS 10706 | HT2558| HT2904 CAMPANILE UNIVERSITY OF CALIF APPROX. 2.4 KM 2421741.2 | HT2558| HT2880 BERKELEY EL DORADO OIL WKS TK APPROX. 6.2 KM 2544609.6 | HT2558|---------------------------------------------------------------------| HT2558 HT2558 SUPERSEDED SURVEY CONTROL HT2558 HT2558 NAD 83(1986)- 37 52 55.37356(N) 122 14 01.68128(W) AD(1984.00) 1 HT2558 NAD 27 - 37 52 55.64400(N) 122 13 57.79700(W) AD( ) 1 HT2558 NGVD 29 (07/19/86) 534.8 (m) 1755. (f) VERT ANG HT2558 HT2558.Superseded values are not recommended for survey control. HT2558.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. HT2558.See file dsdata.txt to determine how the superseded data were derived. HT2558 HT2558_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG6737893005(NAD 83) HT2558_MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION HT2558_SETTING: 66 = SET IN ROCK OUTCROP HT2558 HT2558 HISTORY - Date Condition Report By HT2558 HISTORY - 1932 MONUMENTED CGS HT2558 HISTORY - 1936 SEE DESCRIPTION CGS HT2558 HISTORY - 1947 SEE DESCRIPTION CGS HT2558 HISTORY - 1960 SEE DESCRIPTION CGS HT2558 HISTORY - 1962 SEE DESCRIPTION CGS HT2558 HISTORY - 1965 SEE DESCRIPTION CGS HT2558 HISTORY - 1977 SEE DESCRIPTION NGS HT2558 HT2558 STATION DESCRIPTION HT2558 HT2558'DESCRIBED BY COAST AND GEODETIC SURVEY 1932 (JB) HT2558'STATION IS ON MOUNTAIN KNOWN AS GRIZZLY PEAK (1,759 FEET HIGH), HT2558'ON OR NEAR BOUNDARY LINE OF ALAMEDA AND CONTRA COSTA COUNTIES, HT2558'AND 10 METERS (33 FEET) W OF FIRE LOOKOUT TOWER ON TOP OF HT2558'MOUNTAIN. TO REACH UNIVERSITY AND OXFORD AVENUES IN BERKELEY, HT2558'GO N 0.1 MILE ON OXFORD AVENUE, TURN RIGHT ONTO HEARST AVENUE HT2558'AND GO 0.3 MILE, TURN LEFT ONTO EUCLID AVENUE AND GO 2 MILES HT2558'TO POINT WHERE ROAD MAKES A RIGHT U-TURN INTO GRIZZLY PEAK HT2558'BOULEVARD FOLLOW GRIZZLY PEAK BOULEVARD 1.9 MILES TO GATE, HT2558'PASS THROUGH GATE AND FOLLOW ROAD TO FOOT OF GRIZZLY PEAK, HT2558'AND CLIMB TO SUMMIT AND STATION SITE. MARKED BY STANDARD HT2558'STATION DISK IN BEDROCK, AS DECRIBED IN NOTE 2A. REFERENCE HT2558'MARKS ARE STANDARD REFERENCE DISKS IN BOULDERS, AS HT2558'DESCRIBED IN NOTE 12C. NO. 1 IS 8.570 METERS (28.12 FEET) HT2558'FROM STATION IN AZIMUTH 223 DEG 40 MIN. NO. 2 IS NEAR BARE HT2558'OF FIRE LOOKOUT TOWER AND 9.070 METERS (29.76 FEET) FROM HT2558'STATION IN AZIMUTH 287 DEG 07 MIN. HT2558 HT2558 STATION RECOVERY (1936) HT2558 HT2558'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1936 (LAM) HT2558'STATION IS ON GRIZZLY PEAK, ELEVATION 1759 FEET, ONE OF THE HT2558'HIGHEST POINTS IN THE BERKELEY HILLS, AND ABOUT 35 FEET W OF THE HT2558'LOOKOUT TOWER ON THE SUMMIT, WHICH IS ON THE ALAMEDA-CONTRA COSTA HT2558'COUNTY LINE. MAY BE REACHED FROM N BERKELEY BY DRIVING IN TO HT2558'JUNCTION OF EUCLID AVENUE AND GRIZZLY PEAK BOULEVARD, THEN GO HT2558'SE ALONG GRIZZLY PEAK BOULEVARD 3.5 MILES TO PROMINENT TRAIL, HT2558'THEN SHORT CLIMB TO TOWER. FOOT OF TRAIL IS ALSO 1.7 HT2558'MILES N ALONG BOULEVARD FROM ITS JUNCTION WITH CLAREMONT HT2558'AVENUE. HT2558' HT2558'(NOT NECESSARY TO DESCRIBE ROUTE TO EUCLID AVENUE - GRIZZLY HT2558'PEAK BOULEVARD. WELL KNOWN). HT2558' HT2558'STATION MARK WAS NOT VISITED. HT2558 HT2558 STATION RECOVERY (1947) HT2558 HT2558'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1947 (SPH) HT2558'THE STATION WAS RECOVERED AS PER THE ORIGINAL DESCRIPTION, HT2558'AND ALL MARKS WERE IN GOOD CONDITION. HT2558' HT2558'THE STATION IS ON THE SUMMIT OF GRIZZLY PEAK, A WELL KNOWN HT2558'MOUNTAIN LYING ABOUT 1-1/2 MILES EAST NORTHEAST OF THE UNIVERSITY HT2558'OF CALIFORNIA CAMPUS IN BERKELEY. IT IS ABOUT 12 METERS HT2558'WEST OF THE CENTER OF THE GRIZZLY PEAK LOOKOUT TOWER AND ON HT2558'OR NEAR THE BOUNDARY LINE OF ALAMEDA AND CONTRA COSTA COUNTIES. HT2558'THE ELEVATION OF THE PEAK, AS GIVEN ON THE U.S. GEOLOGICAL HT2558'SURVEY SHEET, IS 1754 FEET. HT2558' HT2558'THE STATION MARK, STAMPED GRIZZLY 1932, IS A STANDARD DISK SET HT2558'IN BEDROCK PROTRUDING 1 INCH ABOVE THE SURFACE OF THE GROUND. HT2558'IT IS 12 FEET NORTHWEST OF THE FENCE SURROUNDING THE LOOKOUT HT2558'TOWER, 6 FEET SOUTHWEST OF AND 1 FOOT LOWER THAN THE CREST OF HT2558'THE RIDGE, 10 METERS EAST OF THE ROAD LEADING TO THE LOOKOUT HT2558'TOWER, AND ABOUT 3 FEET LOWER THAN THE HIGHEST POINT OF THE HT2558'PEAK. HT2558' HT2558'REFERENCE MARK NO. 1, STAMPED GRIZZLY NO 1 1932, IS A STANDARD HT2558'DISK SET IN A BEDROCK OUTCROP (NOT A BOULDER, AS PREVIOUSLY HT2558'STATED) PROJECTING 18 INCHES ABOVE THE SURFACE OF THE GROUND. HT2558'IT IS BENEATH A CLUMP OF BRUSH ON THE NORTH SLOPE OF THE PEAK, HT2558'4.3 METERS EAST OF THE NORTHEAST FENCE CORNER, AND ABOUT 4 FEET HT2558'LOWER THAN THE STATION MARK. HT2558' HT2558'REFERENCE MARK NO. 2, STAMPED GRIZZLY NO 2 1932, IS A STANDARD HT2558'DISK SET IN BEDROCK (NOT A BOULDER) PROTRUDING 4 INCHES ABOVE HT2558'THE GROUND. IT IS 0.9 METER NORTH OF THE WEST LEG OF THE HT2558'LOOKOUT TOWER AND 2-1/2 FEET HIGHER THAN THE STATION MARK. HT2558' HT2558'STATIONS BALD PK (EBMUD) OR ROCKY MOUND RESET 1938 WILL HT2558'SERVE AS AZIMUTH MARKS. HT2558' HT2558'TO REACH THE STATION FROM THE JUNCTION OF CLAREMONT BOULEVARD HT2558'AND GRIZZLY PEAK BOULEVARD ON THE CREST OF THE RIDGE EAST OF HT2558'BERKELEY FOLLOW THE GRIZZLY PEAK BOULEVARD NORTHWESTERLY FOR HT2558'1.15 MILES TO THE ENTRANCE TO THE ARMY CAMP ON RIGHT AT TILDEN HT2558'REGIONAL PARK. CONTINUE ON THE BOULEVARD, LEFT FORK, FOR 0.6 HT2558'MILE TO A DIRT ROAD AND GATE ON RIGHT. TURN RIGHT, OFF THE HT2558'BOULEVARD, AND CONTINUE ON THE NARROW, STEEP ROAD UP THE PEAK HT2558'FOR 0.2 MILE TO THE SUMMIT, LOOKOUT TOWER, AND STATION SITE. HT2558' HT2558'ALL LINES WERE OBSERVED FROM A 14 FOOT STAND. HT2558 HT2558 STATION RECOVERY (1960) HT2558 HT2558'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1960 (WTJ) HT2558'RECOVERED AS DESCRIBED IN GOOD CONDITION. HT2558 HT2558 STATION RECOVERY (1962) HT2558 HT2558'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1962 (IRR) HT2558'THE STATION MARK AND REFERENCE MARKS WERE RECOVERED IN GOOD HT2558'CONDITION AND THE 1947 DESCRIPTION IS ADEQUATE. HT2558 HT2558 STATION RECOVERY (1965) HT2558 HT2558'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1965 (PAS) HT2558'THE STATION AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION HT2558'AS DESCRIBED BY S.P.H. IN 1947. HT2558 HT2558 STATION RECOVERY (1977) HT2558 HT2558'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 (CLN) HT2558'THE GRIZZLY PEAK LOOKOUT TOWER AND ITS FOUNDATIONS HAVE BEEN HT2558'REMOVED AND THE AREA HAS BEEN GRADED DOWN SEVERAL FEET. THE HT2558'REFERENCE MARK 1 DISK WAS FOUND IN AND WAS REMOVED FROM A LARGE HT2558'ROCK THAT WAS FOUND GRADED OUT OF THE GROUND. A CAREFUL SEARCH HT2558'WAS MADE BUT NEITHER THE STATION MARK NOR REFERENCE MARK 2 WAS HT2558'FOUND AND IT IS FELT THAT BOTH MARKS PROBABLY WERE DESTROYED AT HT2558'TH SAME TIME THAT REFERENCE MARK 1 WAS GRADED OUT OF THE HT2558'GROUND. HT2558' HT2558'AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN HT2558'1-1/2 MILES ENE OF U. C. BERKELEY.