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Details for Benchmark: AB2403

N 25° 08.600 W 080° 55.350 (NAD 83)

Altitude: 2.73

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

Location:
In MONROE county, FL View Original Datasheet
Designation:
G MLW 4.99
Marker Type:
survey disk
Setting:
retaining walls, concrete ledge, etc.
Stability:
May hold, but of type commonly subject to surface motion.

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Got it while visiting the park today. At the far corner.

[Photos:]
photoimage

Found on a trip to Flamingo.

[Photos:]
photoAB2403

Found survey disk N25 08.613 W 80 55.352

[Photos:]
photoView of survey disk

Documented History (by the NGS)

Unknown by NPS (MONUMENTED)
10/22/1994 by FLDEP (GOOD)
DESCRIBED BY FL DEPT OF ENV PRO 1994 (LGB) THE MARK IS ABOUT 33.5 MI (53.9 KM) SOUTHWEST OF FLORIDA CITY IN THE EVERGLADES NATIONAL PARK. TO REACH THE MARK FROM THE INTERSECTION OF U.S. HIGHWAY 1 AND PALM DRIVE (SW. 3 STREET) IN FLORIDA CITY, GO WEST ON PALM DRIVE (STATE ROAD 27, SW. 3 STREET) FOR 1.7 MI (2.7 KM) TO THE INTERSECTION OF TOWER ROAD (SW. 192 AVENUE) , TURN LEFT ON TOWER ROAD (STATE ROAD 27, SW 192 AVENUE) AND GO SOUTH FOR 2.1 MI (3.4 KM) TO THE JUNCTION OF SW. 376 STREET (STATE ROAD 27) ON THE RIGHT, TURN RIGHT ON SW. 376 STREET (STATE ROAD 27, PARK ROAD) AND GO WEST FOR 5.4 MI (8.7 KM) TO THE EVERGLADES NATIONAL PARK ENTRANCE BUILDING, CONTINUE WEST-NORTHWEST ON PARK ROAD (STATE ROAD 27) FOR 4.75 MI (7.64 KM) TO THE TURNOFF FOR LONG PINE KEY, CONTINUE WEST-NORTHWEST ON PARK ROAD (STATE ROAD 27) FOR 8.45 MI (13.60 KM) TO THE JUNCTION OF THE ROAD TO PA-HAY-OKEE LOOKOUT TOWER ON THE RIGHT, CONTINUE SOUTHWEST ON PARK ROAD (STATE ROAD 27) FOR 7.15 MI (11.51 KM) TO THE JUNCTION OF A ROAD ON THE RIGHT TO MAHOGANY HAMMOCK, CONTINUE SOUTH ON PARK ROAD (STATE ROAD 27) FOR 4.5 MI (7.2 KM) TO THE JUNCTION OF A ROAD TO POURATIS POND ON THE RIGHT, CONTINUE SOUTH ON PARK ROAD (STATE ROAD 27) FOR 6.5 MI (10.5 KM) TO THE JUNCTION OF A ROAD TO WEST LAKE ON THE LEFT, CONTINUE SOUTHWEST ON PARK ROAD (STATE ROAD 27) FOR 3.65 MI (5.87 KM) TO THE PARKING AREA FOR COOT BAY, CONTINUE SOUTHWEST ON PARK ROAD (STATE ROAD 27) FOR 2.75 MI (4.43 KM) TO THE BRIDGE OVER BUTTONWOOD CANAL, CONTINUE SOUTHWEST ON PARK ROAD (STATE ROAD 27) FOR 0.35 MI (0.56 KM) TO THE JUNCTION OF A PAVED ROAD ON THE LEFT, TURN LEFT ON THE PAVED ROAD AND GO EAST FOR 0.05 MI (0.08 KM) TO THE JUNCTION OF A PAVED ROAD ON THE RIGHT, TURN RIGHT ON THE PAVED ROAD AND GO SOUTH FOR 0.05 MI (0.08 KM) TO THE FIRST PAVED ROAD ON THE LEFT, TURN LEFT ON THE PAVED ROAD AND GO EAST FOR 0.05 MI (0.08 KM) TO THE MARK ON THE RIGHT, SET FLUSH IN THE TOP OF THE CONCRETE SEAWALL NEAR THE HOUSEBOAT RENTALS BUILDING. LOCATED 19.2 FT (5.9 M) SOUTH OF THE NORTHEAST CORNER OF THE CONCRETE SEAWALL AROUND THE HOUSEBOAT RENTALS BUILDING, 5.8 FT (1.8 M) SOUTHEAST OF THE SOUTHEAST CORNER FO THE HOUSEBOAT BUILDING AND 0.6 FT (18.3 CM) WEST OF THE EAST END OF THE CONCRETE SEAWALL.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in April 1996.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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