SOUTH BROTHER ISLAND LT — NGS KU2175 — New York, US

USNGStrigunknown#637138
Latitude
40.797496°
Longitude
-73.898029°
Verifications
0
Last checked
Never
# SOUTH BROTHER ISLAND LT — NGS KU2175 This triangulation station, established by the National Geodetic Survey, is located on South Brother Island in New York's East River (40.7975°N, 73.8980°W). The lighthouse structure serves as a control point for regional geodetic networks. This trig station supports precise positioning work including RTK operations, static GNSS sessions for datum verification, differential leveling circuits, and horizontal network densification across the New York metropolitan area. The island location provides a stable reference geometry for both terrestrial and satellite-based surveying campaigns. Users should verify current accessibility and NGS database records before field operations.

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SOUTH BROTHER ISLAND LT — NGS KU2175 — New York, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #637138 on SurveyingPedia. Its coordinates in WGS84 are 40.797496°, -73.898029°, corresponding to 40° 47′ 50.99″ N, 73° 53′ 52.91″ W in the traditional degrees-minutes-seconds format. This page is a self-updating reference — all data is aggregated from public open sources and cross-checked periodically against the originating agency.

Professional surveyors, engineers, and topographers use points like SOUTH BROTHER ISLAND LT — NGS KU2175 — New York, US to anchor total-station traverses, verify GNSS/RTK solutions, calibrate levelling instruments, and validate survey deliverables against known coordinates. The record on this page is refreshed daily via automated pipelines that monitor the public sources for any updates, corrections, or status changes.

Coordinate formats

WGS84 (decimal)40.797496, -73.898029
WGS84 (DMS)40° 47′ 50.99″ N, 73° 53′ 52.91″ W
UTM zone (approx.)Zone 18N (approx.)
Precise conversionOpen in coordinate converter →

Geodetic context in United States

The national geodetic reference in United States is maintained by National Geodetic Survey (NGS). The active datum is NAD83(2011) / NATRF2022 (active). Coordinates shown on this page are expressed in WGS84 (ETRF/ITRF-compatible) which is directly usable in most modern GNSS receivers. For cadastral work in United States you may need to convert to the local datum using the Coordinate Hub.

Browse the full list of indexed control points in United States from the country page.

Nearby benchmarks

The closest 6 indexed control points within roughly 50 km of this location:

US NGS · triangulation station
NORTH BROTHER ISLAND LT — NGS KU2168 — New York, US
0.5 km away · US
US NGS · triangulation station
SOUTH BROTHERS IS LEDGE LT — NGS KU2176 — New York, US
0.6 km away · US
US NGS · triangulation station
RIKERS ISLAND PEN ROOF TANK — NGS KU4033 — New York, US
0.8 km away · US
US NGS · triangulation station
BOLLARD 1 — NGS KU2144 — New York, US
0.8 km away · US
US NGS · triangulation station
RIKERS ISLAND CHIMNEY — NGS KU4025 — New York, US
0.8 km away · US
US NGS · triangulation station
BRONX NYCRR POWERHOUSE S CHIM — NGS KU4019 — New York, US
0.9 km away · US

Frequently asked questions

What is SOUTH BROTHER ISLAND LT — NGS KU2175 — New York, US?

SOUTH BROTHER ISLAND LT — NGS KU2175 — New York, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #637138. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of SOUTH BROTHER ISLAND LT — NGS KU2175 — New York, US?

The position of SOUTH BROTHER ISLAND LT — NGS KU2175 — New York, US in WGS84 is 40.797496°, -73.898029° (decimal), or 40° 47′ 50.99″ N, 73° 53′ 52.91″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 18N (approx.).

How can I reach and visit this triangulation station?

Use the satellite imagery above to see the surrounding area. You can open this location directly in Google Maps, Google Earth, Bing Maps, or OpenStreetMap using the buttons provided. Many geodetic points are accessible to the public; some are on protected or private land — check local regulations before any field visit. Always bring documentation or your credentials if you plan to use the marker for professional measurement.

Is this point verified and usable for professional surveying?

This record has been community-verified 0 times. Data quality depends on the source: NGS and official national agency points are typically centimetre-accurate, OpenStreetMap survey points are metre-accurate, and GeoNames topographic landmarks (peaks, hills) are reference-grade only. Always cross-reference with the original agency datasheet before using this point for cadastral, legal, or safety-critical work.

Original source: this record was imported from ngs_public. Always refer to the original datasheet for the most up-to-date and authoritative data.