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Details for Benchmark: AT0289

N 29° 56.545 W 089° 59.653 (NAD 83)

Altitude: 10.19

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

Location:
In ST BERNARD county, LA View Original Datasheet
Designation:
CHALMETTE ECC RM 1
Marker Type:
reference mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Visited today! In the rain....

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photo

Saw this benchmark while caching in the area.

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photoAT0289

Visiting the battlefield as part of our family vacation this week. Saw this one before heading up the monument.

[Photos:]
photoChalmette Battlefield
Sign at the Visitor's Center

Here for the NPS stamp and virtual. Picking up some benchmarks too.

[Photos:]
photoAT0289

We found this benchmark during a round trip through this part of the US. We were lured to many great places and discovered some extraordinary places that would have been hidden from us without geocaching. Many thanks to all the owners and greetings from Southern Lower Saxony in Germany.

[Photos:]
photo

We were here visiting the park. We wanted to get the virtual here. We also went all the way up the stairs to find another one.

Spotted while wandering around town with fyrefly_faerie. See her log for pics.

Found with ZeppelinDT while caching

[Photos:]
photoimage

Stumbled across this gem while exploring the grounds.

[Photos:]
photoWide view of the benchmark.
photoClose up of the Benchmark
photoWider view of the Benchmarks.

Found this with Dr.Safeway while visiting the monument.

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photoAT0289 - CHALMETTE ECC RM 1 - location
photoAT0289 - CHALMETTE ECC RM 1

Traveling with Huff-Suter and saw this while grabbing a cache!

Discovered this while checking out the monument. Lots of history here.

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photoAT0289
AT0289

Found this one today too while checking out the monument.

Found at the Chalmette Monument. In great shape! 1931

Found on the monument step

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photoAT0289 Chalmette Ecc RM 1, Chalmette LA

Found while looking at monument.

Spotted this by accident while walking around the Monument..

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photoBenchmark

Spotted this while exploring the monument...

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photoAT0289

Nice little visitors center here to give you a feel for how the battle played out.

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photoAT0289
photoAT0289
photoAT0289 location

Discovered this at the Chalmette Monument...or actually on the Chalmette Monument

Found while visiting the Monument and getting the virtual.

Found in good condition at base of monument as described.

Coordinates N29 56.544 W89 59.656

[Photos:]
photoChalmette ECC RM1 1931

[Red]Found while getting the virtual cache here![/REd]

Found this while caching at the monument.
B&B Cacheseekers

See attached pic, this one has been upgraded.

[Photos:]
photoBenchmark

I think This one may have been replaced with another as the one I saw today has a different reference number (photo attached).
flyingmoose

[Photos:]
photoThe benchmark that is there currently

Found this one while finding the nearby virtual cache. Didn't know this one was here until I stumbled across it.

Hard to miss this one.

Documented History (by the NGS)

01/01/1931 by CGS (MONUMENTED)
01/01/1964 by CGS (GOOD)
DESCRIBED BY COAST AND GEODETIC SURVEY 1964 1.4 MI W FROM CHALMETTE. ABOUT 1.1 MILES NORTHWEST ALONG STATE HIGHWAY 39 FROM THE COURTHOUSE AT CHALMETTE, THENCE ABOUT 0.3 MILE SOUTH ALONG A PAVED DRIVE TO THE CHALMETTE MONUMENT, SET ON THE TOP OF THE SOUTHWEST CORNER OF THE BOTTOM MARBLE STEP OF THE MONUMENT AND ABOUT 1 FOOT ABOVE THE LEVEL OF THE GROUND.
01/01/1966 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1966 RECOVERED IN GOOD CONDITION.
11/19/1990 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1990 2.7 KM (1.7 MI) WESTERLY ALONG STATE HIGHWAY 46 (SAINT BERNARD HIGHWAY) FROM THE JUNCTION OF STATE HIGHWAY 47 IN CHALMETTE, THENCE 0.7 KM (0.4 MI) SOUTHERLY ALONG THE CHALMETTE BATTLEFIELD NATIONAL PARK ENTRANCE ROAD, IN THE SOUTHWEST CORNER OF THE GRANITE BASE OF THE CHALMETTE MONUMENT, 8.2 M (26.9 FT) EAST OF THE EAST CURB OF A CIRCLE DRIVE, 6.1 M (20.0 FT) WEST OF THE CENTER OF A SIDEWALK LEADING TO THE MONUMENT, AND 0.3 M (1.0 FT) ABOVE THE GROUND SURFACE.
01/19/1995 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1995 (GAS) 2.7 KM (1.65 MI) WESTERLY ALONG SAINT BERNARD HIGHWAY (STATE HIGHWAY 46) FROM THE JUNCTION OF STATE HIGHWAY 47 IN CHALMETTE, THENCE 0.6 KM (0.35 MI) SOUTHERLY ALONG THE WEST ENTRANCE ROAD LEADING TO THE CHALMETTE BATTLEFIELD NATIONAL MONUMENT, IN TOP OF AND 0.2 M (0.7 FT) NORTHEAST OF THE WEST CORNER OF THE GRANITE BASE OF THE MONUMENT, 8.2 M (26.9 FT) EAST OF THE EAST CURB OF A TRAFFIC CIRCLE, 6.1 M (20.0 FT) NORTHWEST OF THE CENTER OF A CONCRETE SIDEWALK LEADING TO THE MONUMENT, AND 0.5 M (1.6 FT) ABOVE THE LEVEL OF THE ROAD.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in January 1993.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in December 1996.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • 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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