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Details for Benchmark: AA1060

N 24° 35.977 W 081° 35.269 (NAD 83)

Altitude: 2

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

Location:
In MONROE county, FL View Original Datasheet
Designation:
BUNCH
Marker Type:
triangulation station disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

Reference Points

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Documented History (by the NGS)

1/1/1935 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1935 (JB) THIS FIRST-ORDER STATION IS LOCATED ABOUT 15 MILES NE OF KEY WEST ALONG FLORIDA STATE HIGHWAY 4A, ABOUT 100 YARDS S OF THE HIGHWAY, ON SADDLEBUNCH KEY AT A LONG CURVE IN THE HIGHWAY CURVING TO THE S. GROUND TO THE N OF THE STATION TO THE ROAD IS FIRM AND CLEAR. THERE IS SCATTERED BRUSH AND A FEW MANGROVES TO THE S. STATION, REFERENCE AND AZIMUTH MARKS ARE STANDARD BRONZE DISKS SET IN CONCRETE. STATION MARK PROJECTS ABOUT 5 INCHES ABOVE THE GROUND. REFERENCE MARK NO. 1 IS 97.24 FEET N OF THE STATION, AND PROJECTS 3 INCHES. REFERENCE MARK NO. 2 IS 96.89 FEET W OF THE STATION, AND PROJECTS 2 INCHES. AZIMUTH MARK IS ABOUT 0.4 MILE NW OF THE STATION, 7 PACES N OF THE CENTER LINE OF HIGHWAY, AND ABOUT 25 YARDS W OF A CURVE SIGN ON THE S SIDE OF THE HIGHWAY, AND PROJECTS ABOUT 6 INCHES. HEIGHT OF LIGHT ABOVE STATION MARK 19 METERS.
1/1/1935 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1935 (WHB) STATION IS ABOUT 15 MILES ENE OF KEY WEST, ON THE SOUTHERN SIDE OF SADDLEBUNCH KEYS, 3.3 MILES E OF THE E END OF HIGHWAY BRIDGE NO. 23, (BETWEEN GEIGER KEY AND SADDLEBUNCH KEY) 1.2 MILES W OF SUGARLOAF CREEK, 0.4 MILE NW OF THE RIGHT ANGLE TURN IN THE HIGHWAY (WHERE HIGHWAY PARALLELING SHORE LINE TURNS TO THE NW AND INLAND), 500 METERS N OF THE ATLANTIC OCEAN, JUST E OF A CLUMP OF MANGROVES IN A CLEAR SPACE, 95 METERS SW OF THE HIGHWAY, OVER FIRM, CLEAR GROUND. STATION, REFERENCE AND AZIMUTH MARKS, ARE STANDARD DISKS SET IN CONCRETE. STATION MARK WAS RAISED 12 INCHES ABOVE SURFACE OF GROUND, OTHER MARKS PROJECT ABOUT 4 INCHES ABOVE GROUND SURFACE. AZIMUTH MARK IS ABOUT 1/4 MILE NW OF THE STATION AND 3.5 METERS N OF THE CENTER LINE OF THE HIGHWAY, AND STAMPED AZ MARK BUNCH 1935.
1/1/1964 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1964 (GEV) STATION AND REFERENCE MARKS RECOVERED IN GOOD CONDITION. THE DESCRIPTION IS ADEQUATE WITH THE FOLLOWING EXCEPTIONS AND ADDITIONS-- STATE HIGHWAY 4A IS NOW ABANDONED AND THE BRIDGES REMOVED. STATION IS ABOUT 100 FEET NORTH OF THE EDGE OF MANGROVE AND AT THE EAST EDGE OF MANY LARGE DEAD MANGROVE UPENDED. CROSS SUGARLOAF CREEK BY BOAT AND PROCEED ON FOOT ALONG ABANDONED ROAD ABOUT 1.2 MILES TO FIRST LARGE CLEARED AREA ON SOUTH SIDE AND THE STATION.
1/1/1974 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1974 (RRW) STATION, RM 1 AND RM 2 RECOVERED AS DESCRIBED. THE AZIMUTH MARK DISK HAS BEEN REMOVED FROM THE CONCRETE POST.
1/1/1983 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1983 (HGB) BUNCH 1934 1935 RECOVERED GOOD. AZIMUTH MARK SURVEY DISC MISSING. RM 1 NOT FOUND. RM 2 NOT FOUND. TWO MEN SEARCHED FOR ONE HOUR WITHOUT FINDING RM 1 OR RM 2. LINES OF BEARING WERE LAID OUT BY COMPASS AND DISTANCE WAS MEASURED BY STEEL TAPE. DUE TO LOW PROFILE OF RMS, I.E., 2 AND 3 INCHES IT IS BELIEVED THAT THEY ARE BURIED BY NATURAL FORCES SINCE PRAIRIE APPEARS UNDISTURBED BY MAN. AZIMUTH MARK THE AZIMUTH MARK WAS FOUND APPROX. 2 FEET NORTH OF THE NORTH EDGE OF THE NOW ABANDONED COUNTY ROAD RUNNING ON THE NORTH SIDE OF THE PRAIRIE AND APPROX 0.55 MILE PAST THE ENTRANCE TO THE PRAIRIE ALONG THE CURVING ROAD AND APPROX. 1/4 MILE FROM THE STATION AS THE CROW FLIES.
1/1/1984 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1984 (HGB) BUNCH 1934-1935 STATION MARK RECOVERED GOOD. BUNCH 1934-1935 RM 1 RECOVERED GOOD. BUNCH 1934-1935 RM 2 RECOVERED GOOD. AZ MARK DISC REMOVED. A NEW DESCRIPTION FOLLOWS--APPROXIMATELY 17 MILES FROM KEY WEST GOING NORTHEASTERLY ALONG HIGHWAY US-1 TURN SOUTH AT AN AMBER TRAFFIC BLINKER IN FRONT OF SUGARLOAF LODGE (A RESTAURANT AND MOTEL) ON COUNTY ROAD 939 (FORMERLY STATE ROAD 939) ALSO KNOWN AS SUGARLOAF BOULEVARD. FOLLOW THE ROAD TO THE OLD HIGHWAY AT. THE AZIMUTH MARK WAS FOUND APPROX. 2 FEET NORTH OF THE NORTH EDGE OF THE NEW ABANDONED COUNTY ROAD RUNNING ON THE NORTH SIDE OF THE PRAIRIE AND APPROX. 0.55 MILE PAST THE ENTRANCE TO THE PRAIRIE ALONG THE CURVING ROAD AND APPROX. 1/4 MILE FROM THE STATION AS THE CROW FLIIES.
1/1/1987 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1987 (HGB) RECOVERED IN GOOD CONDITION.
2/16/1994 by KEISCH (GOOD)
RECOVERY NOTE BY KEITH AND SCHNARS - LAKELAND 1994 (MDE) THE STATION IS LOCATED ON SUGARLOAF KEY ABOUT 6.5 MI (10.5 KM) SOUTHEAST OF THE TOWN OF SUGARLOAF IN MONROE COUNTY, FLORIDA. TO REACH THE STATION FROM THE INTERSECTION OF U.S. 1 AND SUGARLOAF BLVD, EAST OF MILE MARKER 17, GO SOUTHEAST ON SUGERLOAF BLVD FOR 2.75 MI (4.43 KM) TO THE INTERSECTION WITH OLD S.R. 4A. TURN RIGHT AND GO SOUTHWEST ON OLD S.R. 4A FOR 3.5 MI (5.6 KM) TO A STEEL GATE. GO THROUGH THE GATE AND GO NORTHWEST ON A DIRT AND ASPHALT RD FOR 1200 FT (365.8 M) TO A DIRT ROAD ON THE LEFT. TURN LEFT AND FOLLOW THE DIRT ROAD TO THE SOUTHWEST FOR 600 FT (182.9 M) THROUGH AN OPEN FIELD TO THE STATION ON THE RIGHT. THE STATION IS A U.S. COAST AND GEODETIC SURVEY TRIANGULATION STATION SET IN A 1'' SQUARE CONCRETE MONUMENT STAMPED "BUNCH 1934 1935." REFERENCES-- FOUND A USCGS REFERENCE MARK DISC SET IN THE TOP OF A CONCRETE MONUMENT, STAMPED "BUNCH 1934 1935 RM 1," MAGNETIC AZIMUTH OF 70 DEGREES AT 97.31 FT (29.66 M) . FOUND A USCGS REFERENCE MARK DISC SET IN THE TOP OF A CONCRETE MONUMENT, STAMPED "BUNCH 1934 1935 RM 2," MAGNETIC AZIMUTH OF 135 DEGREES AT 96.92 FT (29.54 M) . SET IRON ROD AND KEITH AND SCHNARS REFERENCE CAP, MAGNETIC AZIMUTH OF 278 DEGREES AT 29.90 FT (9.11 M) . SET CARSONITE WITNESS POST, MAGNETIC AZIMUTH OF 153 DEGREES AT 0.5 FT (0.2 M) .

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in May 1991.
  • The orthometric height was determined by GPS observations and a high-resolution geoid model.
  • The X, Y, and Z were computed from the position and the ellipsoidal ht.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
  • The geoid height was determined by GEOID99.

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