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Details for Benchmark: AA0269

N 24° 39.250 W 081° 16.933 (NAD 83)

Altitude: 20.98

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

Location:
In MONROE county, FL View Original Datasheet
Designation:
WEST BAHIA RM 2
Marker Type:
reference mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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Found this one during our walk through Baiha Honda State Park .. thanks my jujubedo

[Photos:]
photoAA0269_myjujubedo

Enjoyed the view!

[Photos:]
photoAA0269

My wife spotted this while I was swapping trackables at a nearby cache.

[Photos:]
photo26 December 2014

Recovered together with gott18 on our four week vacation which, amongst others, brought us to Florida.

Got it :-)

[Photos:]
photoIMG_5397

Found while geocaching.

[Photos:]
photoit is here

Bahia Honda State Park

Found this one while doing some volunteer work in the park.

Geocaching for GC55THT which is very near this benchmark, one of three in on this little hill and under the bridge. All benchmarks are in great condition.

Made find while checking out the bridge.

[Photos:]
photoAA0269

With my mom and dad (AstroD) hunting for benchmarks in the Keys. We are here for the Winter Star Party!

[Photos:]
photoW BH Florida Keys

Found as described and recovered in good condition.

While the rest of the team was playing at the beach, I went in search of a few marks. Got the scare of my life as I was squatting down to grab this pix...a big iguana was just to the left. Never saw the thing as I was so fixated on identifying the mark.

[Photos:]
photoclose up AA0269 - Monroe County, FL
photoiguana at AA0269

Found it at 24 39.282N, 081 16.907W

found while camping at bhsp

Found this while vacationing at the cabins at Bahia Honda State park, just prior to being evacuated because of tropical storm Fay.

[Photos:]
photoWall
photoCloseup

Documented History (by the NGS)

01/01/1935 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1935 (ERM) STATION IS LOCATED ON THE W POINT OF BAHIA HONDA KEY ON THE S SLOPE OF THE RAILROAD FILL.
01/01/1966 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1966 (RRG) REFERENCE MARK NO. 2 WAS FOUND IN GOOD CONDITION. THE STATION AND REFERENCE MARK NO. 1 WERE REPORTED DESTROYED OR COVERED. WEST BAHIA RM 2 IS LOCATED ABOUT 13.4 MILES SOUTHWEST ALONG U.S. HIGHWAY 1 FROM THE POST OFFICE AT MARATHON, ON BAHIA HONDA KEY, NEAR THE EAST BANK OF BIG SPANISH CHANNEL, NEAR THE EAST END OF THE BAHIA HONDA BRIDGE, ON TOP OF THE SOUTH WING WALL OF THE BRIDGE, 33 FEET SOUTH OF THE CENTER LINE OF THE HIGHWAY (MEASURED UNDER THE BRIDGE), 17.2 FEET SOUTHEAST OF BENCH MARK 4 1936 DESCRIBED AND THE DISK IS STAMPED W BAHIA NO 2 1935.
01/01/1966 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1966 13.4 MI SW FROM MARATHON. ABOUT 13.4 MILES SOUTHWEST ALONG U.S. HIGHWAY 1 FROM THE POST OFFICE AT MARATHON, ON BAHIA HONDA KEY, NEAR THE EAST BANK OF BIG SPANISH CHANNEL, AT THE EAST END OF THE BAHIA HONDA BRIDGE, ON TOP OF THE SOUTH WING WALL, 105 YARDS WEST OF THE EAST END OF BRIDGE (PART OF BRIDGE IS OVER LAND), 33 FEET SOUTH OF THE CENTER LINE OF THE HIGHWAY (MEASURED UNDER BRIDGE), 17.2 FEET SOUTHEAST OF BENCH MARK 4 1936 AND ABOUT 35 FEET BELOW THE LEVEL OF THE HIGHWAY.
01/01/1970 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1970 RECOVERED IN GOOD CONDITION.
01/01/1978 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978 RECOVERED IN GOOD CONDITION.
01/01/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 RECOVERED IN GOOD CONDITION.
01/01/1982 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1982 (MZ) POSITION DETERMINED BY CHARTED LOCATION OF THE OLD BAHIA HONDA BRIDGE AS CHARTED ON CHART 11445. LOCATED ABOUT 30 FEET SOUTH OF THE EAST END OF OLD BAHIA HONDA BRIDGE ON TOP OF SLOPING SEA WALL RUNNING IN A SOUTHLY DIRECTION FROM THE OLD BRIDGE.
01/01/1982 by FLDNR (GOOD)
RECOVERY NOTE BY FL DEPT OF NAT RES 1982 RECOVERED IN GOOD CONDITION. THE DESCRIPTION IS ADEQUATE EXCEPT NOTE THAT THE MARK IS IN THE OLD HIGHWAY BRIDGE, NOW A HISTORIC MONUMENT AT BAHIA HONDA STATE RECREATION AREA.
01/01/1984 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1984 (HGB) W BAHIA NO. 2 1935 RECOVERED GOOD. STATION WEST BAHIA AND RM 1 WERE PREVIOUSLY REPORTED DESTROYED. RM 2 RECOVERED AS DESCRIBED.

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 June 1991. WARNING-Repeat measurements at this control monument indicate possible vertical movement.
  • This Tidal Bench Mark is designated as VM 6369 by the Center for Operational Oceanographic Products and Services.
  • 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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