Skip to Content

Details for Benchmark: DC1974

N 32° 56.805 W 116° 36.403 (NAD 83)

Altitude: 6508

Coordinates may not be exact. Altitude is VERTCON and location is ADJUSTED. (more info)

Location:
In SAN DIEGO county, CA View Original Datasheet
Designation:
CUYAMACA RESET
Marker Type:
chiseled circle
Setting:
in a boulder
Stability:
Mark of questionable or unknown stability.

Reference Points

Must Read!

Benchmarks may be on private property or in dangerous locations. Obey local laws. By using the services on Geocaching.com you agree to this disclaimer.

(T: 1421) Found as decribed by official 01/01/1986 by NGS entry at bottom of page. Just the stub remains. What the log does not mention are the fantastic views from here.

[Photos:]
photoDC1974 Benchmark

Lots of incomplete/inaccurate logs here. I will do my best to sort out what I found using notes in data sheets. Original copper bolt from 1898 was replaced with Triangulation Station Benchmark 1923 which is currently missing and is now just the stem. Lookout tower was demolished in the 1980's. Reference mark No. 3 exists on one of the footings of the original tower. Found Cuyamaca Triangulation Station Benchmark stem, Reference Benchmark 1923, Reference Benchmark No. 2, Reference Benchmark No. 3, Cuyamaca Eccentric Mark 1939, NASA Benchmark 1980, and I will include Cuyamaca Azimuth Mark No. 1 which is on Stonewall Peak.

This entry was edited by mikey. on Wednesday, 08 January 2014 at 08:11:53 UTC.

This entry was edited by mikey. on Wednesday, 08 January 2014 at 08:19:44 UTC.

[Photos:]
photoDC1974 Triangulation Station Benchmark 1923
Only stem remains
photoDC1974 Reference Benchmark 1923
First reference benchmark.
photoDC1974 Reference Benchmark No. 2 1935
photoDC1974 Reference Benchmark No. 3 1954
On footing of original Lookout Tower
photoDC1975 Eccentric Benchmark 1970
photoDC1971 Azimuth Benchmark No. 1 1939
Resides on Stonewall Peak summit
photoDC1973 Cuyamaca Lookout Tower
Lookout Tower circa 1920, demolished in the 1980's
photoCuyamaca NASA-GSFC Benchmark 1981
Not mentioned in data sheets

Enjoyed a great hike to the top where I located two disks and a stem along with some geocaches.

Found it. Very cold and windy at summit.

[Photos:]
photoCold and Wet

Rhonda, Zoey and I found this today while on a fun hike with Todd, Kristie, Anastasia, Susi, Bob and Alan.

Very Cool...I also talked 3cd's to hike up here with me

[Photos:]
photoDSCN4459

Wow what a peak... benchmarks, multiple geo's! .... and a view to boot!!! One of the best, direct, and fun workout hikes in the county!

found it!

found it

Found it! But thanks to some bad weather, there was absolutely no view.

Found this benchmark after the hike to the top with 3cd's.

[Photos:]
photoBenchmark near the peak

My youngest son found this one while out geocaching. Nice pink circle around it now.

Nice view.

Documented History (by the NGS)

01/01/1898 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1898 (ATM) IN 1898 STATION WAS MARKED BY CROSS ON COPPER BOLT SET IN DRILL HOLE IN LEDGE. REFERENCE MARKS WERE COPPER BOLTS AT INTERSECTIONS OF CROSS LINES CUT IN ROCK AT FOLLOWING APPROXIMATE DIRECTIONS AND DISTANCES FROM STATION. S, 1.900 METERS (6.23 FEET). N, 2.343 METERS (7.69 FEET). AND NE, 2.150 METERS (7.05 FEET).
01/01/1935 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1935 ON CUYAMCA PEAK, ABOUT 35 MILES NE OF SAN DIEGO, 9 MILES S OF JULIAN, 6-1/2 MILES N OF DESCANSO, 3 MILES SW OF CUYAMACA, 14.2 METERS (47 FEET) NNW OF CENTER OF FIRE-LOOKOUT TOWER, AND 10 FEET S OF HIGHEST POINT. PEAK IS HIGHEST POINT OF BACKBONE OF LARGE LEDGE WHICH FORMS HIGHEST PART OF SOUTHERN AND TALLER PEAK OF CUYAMACA PEAK. TO REACH FROM JULIAN, DRIVE PAST CUYAMACA DAM TO SUMMIT, LEAVE MAIN ROAD AND FOLLOW DIM ROAD TO RIGHT 2 MILES UP THROUGH FOREST TO STATION SITE. IN 1910 COPPER BOLT MARKING STATION HAD BEEN REMOVED. CENTER OF DRILL HOLE WAS USED AS STATION. A CROSS WAS CUT IN FACE OF LARGE ROCK ALMOST DIRECTLY UNDER OLD N REFERENCE MARK, AND ROCK CONTAINING ORIGINAL N REFERENCE MARK, ALTHOUGH SPLIT, WAS REPLACED IN OLD POSITION OVER NEW MARK. IN 1919 A CROSS CUT IN TOP OF LARGE BOULDER WAS PLACED 1/2 METER (2 FEET) BELOW AND 8.88 METERS (29.1 FEET) FROM STATION S 25 DEG 49 MIN E. IN 1923 STANDARD STATION DISK WAS SET IN DRILL HOLE MARKING STATION. STANDARD REFERENCE DISK (NO. 1) WAS ESTABLISHED IN ROCK OUTCROP 22.220 METERS (72.90 FEET) FROM STATION S 33 DEG 43 MIN E. IN 1935, STANDARD REFERENCE DISK (NO. 2) WAS ESTABLISHED IN ROCK OUTCROP 14.792 METERS (48.53 FEET) FROM STATION.
01/01/1936 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1936 (WM) STATION RECOVERED. MARKS IN GOOD CONDITION. ADDITIONAL AZIMUTH MARK ESTABLISHED. DETAILED DESCRIPTION AS FOLLOWS--ABOUT 9 MILES S OF JULIAN. 3 MILES SSW OF CUYAMACA LAKE. AND 6-1/2 MILES N OF DESCANSO. ON LANDS OF THE CUYAMACA STATE PARK. STATION IS ON SUMMIT OF CUYAMACA PEAK, HIGHEST IN VICINITY, AND ON WHICH A STEEL FIRE LOOKOUT TOWER IS LOCATED. MARK IS STANDARD TABLET SET IN ROCK ABOUT 10 FEET S OF HIGHEST POINT OF PEAK, AND 7.67 METERS NW OF CENTER OF LOOKOUT TOWER. REFERENCE MARK NO. 1 IS BEHIND SE LEG OF TOWER, AND NOT VISIBLE FROM STATION. STANDARD TABLET SET IN 1923. REFERENCE MARK NO. 2, STANDARD TABLET SET IN 1935 IS IN BOULDER NE FROM STATION. AZIMUTH MARK IS STANDARD AZIMUTH MARK TABLET SET IN SOLID ROCK ON HIGHEST POINT OF STONEWALL PEAK, ABOUT 2-1/4 MILES NE OF STATION. REACHED BY GOOD GRADED TRAIL FROM POINT ON HIGHWAY OPPOSITE FIRE STATION, DISTANCE ABOUT 2 MILES, AND 35 MINUTES PACK. REACHED FROM JULIAN BY PAVED HIGHWAY 79 S 9 MILES TO CUYAMACA LODGE. CONTINUE S 2.5 MILES TO STONE FIRE STATION AND PICNIC GROUNDS ON W SIDE OF HIGHWAY AT SUMMIT OF GRADE. THENCE FOLLOW ROAD LEADING W, 3.0 MILES TO LOOKOUT ON SUMMIT OF CUYAMACA MOUNTAIN. TRUCK TO POINT ABOUT 30 YARDS S OF STATION. R.M. ESTABLISHED IN 1919, CROSS ON BOULDER, WAS DESTROYED IN BUILDING LOOKOUT TOWER. ORIGINAL DATA, NOT CHECKED. ALL DISTANCES ARE HORIZONTAL.
01/01/1939 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1939 (ACT) STATION LOCATED ABOUT 9 MILES, AIRLINE, S OF JULIAN IN CUYAMACA STATE PARK ON A PROMINENT HIGH PEAK KNOWN AS CUYAMACA MOUNTAIN. STATION IS MARKED BY A STANDARD DISK SET IN A LARGE BOULDER STAMPED CUYAMACA 1923. REFERENCE MARKS ARE STANDARD MARKS SET IN ROCK STAMPED CUYAMACA 1923 AND CUYAMACA NO. 2 1935. STATION REACHED FROM THE INTERSECTION OF U.S. HIGHWAY 80 AND STATE HIGHWAY 79, BY GOING WESTERLY ON HIGHWAY 79 FOR 0.25 MILE. THENCE NORTHERLY ON HIGHWAY 79 FOR 8.8 MILES TO CUYAMACA RANGER STATION ON LEFT. TURN LEFT ONTO RANGER STATION, FOLLOW OIL ROAD ABOUT 50 YARDS. TURN LEFT ON TRACK ROAD 0.15 MILE TO A BOARD GATE. THIS GATE IS LOCKED BY A FOREST SERVICE LOCK AND A KEY WILL BE NEEDED. CONTINUE ON MAIN TRAVELED ROAD 2.55 MILES TO LOOKOUT TOWER AND STATION.
01/01/1954 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1954 (LSB) STATION AND ALL MARKS, WITH THE EXCEPTION OF THE AZIMUTH MARK, WERE RECOVERED AND FOUND IN GOOD CONDITION. THERE IS NOW AN OBSERVATION PLATFORM AT THE SITE OF THE AZIMUTH MARK, AND A CONCRETE MONUMENT WITH A 3/4-IN. BOLT IN THE TOP IS IN THE APPROXIMATE POSITION OF THE PREVIOUS AZIMUTH-MARK DISK. THE CONCRETE MONUMENT CAN BE USED FOR THE AZIMUTH MARK. THE REFERENCE MARK, SET IN 1923, IS BEHIND THE SE LEG OF THE LOOKOUT TOWER AND IS NOT VISIBLE FROM THE STATION. A NEW REFERENCE MARK, R.M. 3, WAS ESTABLISHED. REFERENCE MARK 2 AND THE COPPER PLUGS TO THE S, N-NW, AND E-NE OF THE STATION CHECKED THE 1936 DISTANCES AND DIRECTIONS. SLIGHT DIFFERENCES IN THE DISTANCES TO THE CENTER OF THE LOOKOUT TOWER AND COPPER PLUG TO THE N OF THE STATION WERE FOUND. THE DIRECTIONS TO THESE TWO POINTS CHECKED THE PREVIOUS DATA. A TIE-IN WAS MADE TO STATION CUYAMACA ECC. DUE TO THE LEGS ON THE W SIDE OF THE LOOKOUT TOWER, IT IS NECESSARY TO MAKE AN ECCENTRIC SET-UP IN ORDER TO MAKE OBSERVATIONS ON STATION LOS PINOS. THE FOLLOWING IS AN ADAPTION OF THE PREVIOUS DESCRIPTION WITH ANY CHANGES OR ADDITIONS NOTED-- STATION IS LOCATED ABOUT 9 MI. (AIRLINE) S OF JULIAN, IN CUYAMACA STATE PARK. IT IS ON THE SUMMIT OF CUYAMACA MOUNTAIN, JUST NW OF THE CENTER OF THE LOOKOUT TOWER. TO REACH THE STATION FROM THE INTERSECTION OF U.S. HIGHWAY 80 AND STATE HIGHWAY 79, GO W AND N ON STATE HIGHWAY 79 FOR 10 MI. TO THE CUYAMACA RANGER STATION ON THE LEFT. THE CONCRETE MONUMENT IS ON THE SUMMIT OF STONE WALL PEAK, AND IS REACHED BY A GOOD TRAIL JUST ACROSS THE HIGHWAY, E OF THE FIRE STATION. THIS IS ABOUT A 35-MINUTE PACK. TO REACH THE LOOKOUT TOWER AND STATION, TURN LEFT (W) INTO THE RANGER STATION GROUNDS AND FOLLOW AN OILED ROAD FOR ABOUT 50 YDS., THENCE LEFT ON THE TRACK ROAD FOR 0.15 MI. TO A LOCKED GATE. THE KEY MAY BE OBTAINED AT THE RANGER STATION. CONTINUE ON THE MOUNTAIN ROAD FOR 2.55 MI. TO THE LOOKOUT TOWER AND THE STATION. A FOUR-WHEEL DRIVE VEHICLE IS RECOMMENDED. THE STATION MARK IS A STANDARD DISK, STAMPED CUYAMACA 1923 AND SET IN A ROCK OUTCROP. THERE IS A HIGHER BOULDER ABOUT 10 FT. N OF THE STATION POINT. REFERENCE MARK 2 IS A STANDARD DISK, STAMPED CUYAMACA NO 2 1935 AND SET IN A BOULDER ABOUT 8 FT. LOWER THAN THE STATION. REFERENCE MARK 3 IS A STANDARD DISK, STAMPED CUYAMACA NO 3 1954 AND SET IN THE CONCRETE BASE OF THE SE LEG OF THE LOOKOUT TOWER. STATION CUYAMACA ECC IS A STANDARD STATION-MARK DISK, STAMPED ECC CUYAMACA 1939 AND SET IN A ROCK OUTCROP ABOUT 4 FT. LOWER THAN THE STATION. THE CONCRETE MONUMENT IS ABOUT 4 FT. HIGH, 3 FT. SQUARE AT THE BASE, AND 1 FT. SQUARE AT THE TOP. THE COPPER PLUGS ARE 1 IN. IN DIAMETER, AND SET IN DRILL HOLES FLUSH WITH THE OUTCROPPING ROCKS. NOTE--THE DISTANCES GIVEN ABOVE ARE HORIZONTAL.
01/01/1956 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1956 (RLE) THE STATION MARK, REFERENCE MARKS 2 AND 3, A REFERENCE MARK SET IN 1923 (NOT NUMBERED), THE AZIMUTH MARK, AND THE COPPER PLUGS TO THE N, S AND N-NW WERE RECOVERED AND FOUND IN GOOD CONDITION. A NEW AND COMPLETE DESCRIPTION FOLLOWS-- THE STATION IS ABOUT 9 MI. S OF JULIAN, IN CUYAMACA STATE PART, AND AT THE SUMMIT OF CUYAMACA MOUNTAIN. THE STATION MARK IS 25.2 FT. NW OF THE CENTER OF CUYAMACA LOOKOUT TOWER, AND 23-1/2 FT. SW OF A POWERLINE POLE. IT IS STAMPED CUYAMACA 1923 REFERENCE MARK 2 IS 25 FT. N-NW OF A TELEPHONE POLE, AND 23-1/2 FT. NE OF A POWERLINE POLE. IT IS STAMPED CUYAMACA NO 2 1935. REFERENCE MARK 3 IS IN THE ABUTMENT AT THE SE LEG OF THE LOOKOUT TOWER. IT IS STAMPED CUYAMACA 1954. A REFERENCE MARK SET IN 1923 IS 36 FT. SE OF THE SE LEG OF THE LOOKOUT TOWER, AND 15 FT. E OF THE STEPS LEADING TO THE LOOKOUT TOWER. IT IS STAMPED CUYAMACA 1923. THE AZIMUTH MARK IS AT THE SUMMIT OF STONEWALL PEAK, 5 FT. W OF A MONUMENT THAT IS ABOUT 4 FT. HIGH AND 1 FT. W OF THE GUARDRAIL THAT ENCLOSES THE MONUMENT. IT IS A STANDARD REFERENCE-MARK DISK, CEMENTED IN A DRILL HOLE IN A BOULDER, AND IS STAMPED CUYAMACA AZIMUTH NO 2 1939. TO REACH THE STATION FROM THE POST OFFICE IN JULIAN, GO S ON STATE HIGHWAY 79 FOR 8.7 MI. TO THE CUYAMACA LODGE, CONTINUE S ON STATE HIGHWAY 79 FOR 2.5 MI. TO A PICNIC GROUNDS AND THE CUYAMACA RANGER STATION ON THE RIGHT. A KEY TO THE GATE (SW OF THE RANGER STATION) CAN BE OBTAINED AT THE RANGER STATION. CONTINUE S (PAST THE RANGER STATION) FOR 50 YD., THEN TURN RIGHT AND GO SW (PASSING TO THE LEFT OF THE CUYAMACA FIRE STATION) FOR 0.1 MI. TO A LOCKED GATE. PASS THRU GATE AND FOLLOW THE MACADAM ROAD FOR 2.7 MI. TO A FORK, TAKE LEFT FORK AND GO ABOUT 60 YD. TO THE END OF TRUCK TRAVEL. FROM HERE PACK NW FOR ABOUT 40 YD. TO THE LOOKOUT TOWER, THE STATION AND REFERENCE MARKS AS DESCRIBED. TO REACH THE AZIMUTH MARK FROM THE CUYAMACA RANGER STATION PACK E-NE UP THE WELL-MARKED TRAIL TO THE SUMMIT OF STONEWALL PEAK AND THE AZIMUTH MARK AS DESCRIBED.
01/01/1957 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1957 (CFO) ALL MARKS WERE FOUND IN GOOD USEABLE CONDITION. THE STATION IS LOCATED APPROXIMATELY 35 MILES NORTHEAST OF SAN DIEGO, 9 MILES SOUTH OF JULIAN, AND 3 MILES SOUTHWEST OF CUYAMACA. IT IS ON THE HIGHEST PART OF CUYAMACA MOUNTAIN, 14.2 METERS NORTH OF A FIRE OBSERVATION TOWER. THE ITINERARY TO THE STATION IS CORRECT. THE STATION MARK IS A BRONZE DISC NINE 9 CENTIMETERS IN DIAMETER SET WITH CEMENT IN A HOLE BORED IN A BIG BOULDER. IT IS ENGRAVED--CUYAMACA 1923. REFERENCE MARK 1 SET WITH CEMENT IN A HOLE BORED IN SOLID ROCK, AND STAMPED R.M. NO. L CUYAMACA 1923. REFERENCE MARK 2 IS A BRONZE DISK SET WITH CEMENT IN A HOLE BORED IN SOLID ROCK AND STAMPED R.M. NO. 2 CUYAMACA 1935. REFERENCE MARK 3 IS A BRONZE DISK SET WITH CEMENT IN A HOLE BORED IN SOLID ROCK AND STAMPED R.M. NO. 3 CUYAMACA 1935. THE AZIMUTH MARK IS A BRONZE DISK SET WITH CEMENT IN A HOLE BORED IN SOLID ROCK AND STAMPED AZIMUTH CUYAMACA. IT IS LOCATED ON THE HIGHEST PART OF WALL PEAK THAT IS APPROXIMATELY 2 1/4 MILES NORTH OF THE STATION. NEW MEASUREMENTS TO THE REFERENCE AND AZIMUTH MARKS WERE TAKEN. R.M. NO. 1 COULD NOT BE CHECKED BECAUSE THE TOWER INTERFERRED.
01/01/1975 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1975 (ILC) THE STATION MARK, CUYAMACA ECCENTRIC 1939, REFERENCE MARKS 2, 3 AND 1923, AND THE FOUR COPPER PLUGS WERE RECOVERED IN GOOD CONDITION. THE MONUMENT OVER THE AZIMUTH MARK WAS NOT VISITED. CUYAMACA ECCENTRIC 1939 AND REFERENCE MARK 2 ARE IN DENSE BRUSH AND TREES, NO CLEARING ALLOWED. REFERENCE MARK 3 IS BLOCKED BY THE LOOKOUT TOWER STEPS. REFERENCE MARK 1923 IS BLOCKED BY THE LOOKOUT TOWER LEG. THE DIRECTIONS TO THE COPPER PLUGS, THE LOOKOUT TOWER, AND THE MONUMENT CHECKS THE 1957 DATA. THE DISTANCES TO THE COPPER PLUGS (NORTH-NORTHWEST, NORTH, AND NORTHEAST) PREVIOUSLY MENTIONED AS BEING HORIZONTAL, CHECKED THE SLOPE DISTANCE OBTAINED AT THIS TIME. A DIFFERENCE IN DISTANCE OF PLUS 0.020 METER WAS NOTED TO THE COPPER PLUG (SOUTH), AND PLUS 0.11 METER TO THE LOOKOUT TOWER. A COMPLETE NEW DESCRIPTION FOLLOWS-- THE STATION IS LOCATED 35 MILES EAST-NORTHEAST OF SAN DIEGO, 10 MILES NORTHEAST OF ALPINE, 9 MILES SOUTH OF JULIAN, ON CUYAMACA MOUNTAIN IN THE CUYAMACA RANCHO STATE PARK, AT 6500 FEET ELEVATION. TO REACH THE STATION FROM THE JUNCTION OF INTERSTATE HIGHWAY 8 AND TAVERN ROAD, AT THE WEST END OF ALPINE, GO EAST ON HIGHWAY 8 FOR 9.1 MILES TO ITS JUNCTION WITH STATE HIGHWAY 79. GO NORTH ON HIGHWAY 79 FOR 2.7 MILES TO A ROAD LEFT. TURN LEFT AND CONTINUE NORTHERLY ON HIGHWAY 79 FOR 10.1 MILES TO THE CALIFORNIA FOREST SERVICE FIRE STATION ON THE LEFT. TURN LEFT ON THE MACADAM DRIVE, KEEPING TO THE LEFT OF THE STATION, AND GO 0.1 MILE TO A CROSSROAD AND A LOCKED GATE. PASS THROUGH THE GATE AND FOLLOW THE NARROW MACADAM ROAD FOR 2.8 MILES TO TOP OF HILL AND A DIRT ROAD LEFT. TURN LEFT AND GO WEST FOR ABOUT 50 FEET TO A SMALL PARKING AREA AND THE LOOKOUT TOWER ON THE RIGHT, AND END OF TRUCK TRAVEL. WALK NORTHERLY FOR 100 FEET TO THE STATION ON THE LEFT. THE STATION MARK, A STANDARD DISK STAMPED CUYAMACA 1923, IS CEMENTED IN A DRILL HOLE IN OUTCROPPING BEDROCK WHICH PROJECTS ABOUT 3 FEET ABOVE GROUND. THE AREA AROUND THE DISK HAS BEEN BUILT UP WITH CEMENT TO FORM A RECTANGULAR SHAPE THAT IS ABOUT 1 INCH HIGHER THAN THE ROCK. IT IS 24.5 FEET SOUTHWEST OF A UTILITY POLE, 24 FEET WEST OF A TRAIL, 15.0 FEET NORTH OF THE NORTHWEST LEG OF THE TOWER, IN LINE WITH THE 2 WEST LEGS OF THE TOWER. IT IS ON THE WEST EDGE OF THE RIDGE. CUYAMACA ECCENTRIC, A STANDARD DISK STAMPED ECC CUYAMACA 1939, IS CEMENTED IN A DRILL HOLE IN A 1 X 2 X 0.5 FOOT HIGH BOULDER. IT IS 33.7 FEET NORTH OF THE NORTHEAST LEG OF THE TOWER, 10.0 FEET NORTH-NORTHWEST OF A UTILITY POLE, 5.2 FEET SOUTH OF A 10-INCH STUNTED PINE TREE, AND 11 FEET WEST OF THE TRAIL, AND 4 FEET LOWER THAN THE STATION. REFERENCE MARK 1923, A STANDARD DISK STAMPED CUYAMACA 1923, IS CEMENTED IN A DRILL HOLE IN A LARGE ROCK OUTCROP, ABOUT 8 FEET LOWER THAN THE STATION. IT IS 35.5 FEET SOUTHEAST OF THE SOUTHEAST LEG OF THE TOWER, 20.1 FEET WEST OF A UTILITY POLE, AND 10.5 FEET EAST OF THE SIDEWALK LEADING TO THE TOWER. REFERENCE MARK 2, A STANDARD DISK STAMPED CUYAMACA NO 2 1935, IS CEMENTED IN A DRILL HOLE IN A 1 X 2 X 1-FOOT HIGH BOULDER ON THE EAST SIDE OF THE RIDGE. IT IS 55 FEET SOUTH OF A UTILITY POLE WITH AN ANTENNA, 22 FEET NORTHEAST OF A UTILITY POLE AND 15 FEET EAST OF THE TRAIL. REFERENCE MARK 3, A STANDARD DISK STAMPED CUYAMACA NO 3 1954, IS CEMENTED IN A DRILL HOLE IN THE NORTHWEST CORNER OF THE SOUTHEAST CONCRETE FOOTING OF THE TOWER. MONUMENT, AS DESCRIBED BY R.W.W. IN 1950, STATES THE MONUMENT IS 4 FEET HIGH, 3 FEET AT THE BASE, 16 INCHES AT THE TOP WITH A 3-1/2 INCH HIGH 3/4-INCH BOLT PROJECTING FROM THE TOP, AND CENTERED IN THE MONUMENT. COPPER PLUG, NORTH-NORTHWEST, IS 1/2-INCH IN DIAMETER, SET FLUSH IN A DRILL HOLE, HAS A CROSS IN THE TOP, AND IS 1 FOOT LOWER THAN THE STATION, IN A 10 FOOT HIGH BOULDER. COPPER PLUG, NORTH, IS 1/2 INCH IN DIAMETER WITH A CROSS IN THE TOP, IN A FLAT BOULDER THAT IS 2 FEET LOWER THAN THE STATION. COPPER PLUG, NORTHEAST, IS 1/2 INCH IN DIAMETER WITH A CROSS IN THE TOP, SET IN THE SOUTH FACE OF A LOW BOULDER, ABOUT LEVEL WITH THE STATION. COPPER PLUG, SOUTH, IS 1/2 INCH IN DIAMETER WITH A CROSS IN THE TOP, IN A ROUNDED BOULDER ABOUT 1 FOOT LOWER THAN THE STATION. NO SUITABLE LOCATION FOR AN AZIMUTH MARK (ADDITIONAL). HEIGHT OF LIGHT ABOVE STATION MARK 4 FEET. AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN 10 MILES NORTHEAST OF ALPINE.
01/01/1986 by NGS (SEE DESCRIPTION)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1986 (MRM) THE STATION WAS RECOVERED AT THIS DATE, IN FAIR CONDITION. THE DISK HAS BEEN REMOVED, ONLY THE DISK STEM REMAINS. REFERENCE MARKS AND AZIMUTH MARK WERE NOT SEARCHED FOR AT THIS DATE. THE STATION IS LOCATED ABOUT 56.3 KM (35 MI) EAST-NORTHEAST OF SAN DIEGO, 16.1 KM (10 MI) NORTHEAST OF ALPINE, 14.5 KM (9 MI) SOUTH OF JULIAN, ON CUYAMACA MOUNTAIN, IN CUYAMACA RANCHO STATE PARK. OWNERSHIP--STATE OF CALIFORNIA, DEPARTMENT OF PARKS AND RECREATION, 1333 CAMINO DEL RIO SOUTH, SUITE 200, SAN DIEGO CA 92108, BETH HAYDEN - MANAGEMENT SERVICES TECHNICIAN, PHONE 619-237-6586. TO REACH THE STATION FROM THE INTERSECTION OF INTERSTATE HIGHWAY 8 AND STATE HIGHWAY 79 WHICH IS ABOUT 9.7 KM (6 MI) WEST OF PINE VALLEY, GO NORTH FOR 4.3 KM (2.65 MI) ON HIGHWAY 79 TO A LEFT TURN IN HIGHWAY 79. TURN LEFT AND CONTINUE AHEAD FOR 14.2 KM (8.85 MI) ON HIGHWAY 79 TO THE PASO PACHEO CAMPGROUND AND RANGER STATION. CONTINUE AHEAD FOR 0.2 KM (0.1 MI) ON HIGHWAY 79 TO A FIRE STATION. CONTINUE AHEAD FOR 4.7 KM (2.9 MI) ON HIGHWAY 79 TO THE PARK HEADQUARTERS ENTRANCE ROAD (KEY TO LOCKED GATE MAY BE OBTAINED AT PARK HEADQUARTERS). CONTINUE AHEAD AND GO NORTH FOR 4.6 KM (2.85 MI) ON HIGHWAY 79 TO THE PASO PACHEO FIRE STATION. TURN LEFT AND GO 0.2 KM (0.1 MI) TO A LOCKED GATE. PASS THROUGH GATE AND GO 4.3 KM (2.7 MI) TO A SIDE TRAIL LEFT. TURN LEFT ON THE TRAIL AND GO INTO A PARKING AREA TO THE END OF TRUCK TRAVEL. PACK UP A SET OF ROCK STAIRS AND FOLLOW THE TRAIL FOR ABOUT 23 METERS (75 FT) TO A LARGE ROCK OUTCROP ON THE LEFT AND THE STATION ON THE HIGHEST PART OF THE OUTCROP. THE STATION IS A CROSS CUT IN THE TOP OF A SURVEY DISK STEM SET INTO A DRILL HOLE IN ROCK OUTCROP. SALTON TROUGH CRUSTAL-MOTION MONITORING, SOUTHERN CALIFORNIA, MAY-JUNE 1986. THIS STATION SUITABLE FOR GPS SURVEYS. DESCRIBED BY J.D. RIGNEY JR.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in June 1996. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

Advertising with Us

Return to the Top of the Page