HART ISLAND BEACON — NGS KU3798 — New York, US

USNGStrigunknown#636815
Latitude
40.844903°
Longitude
-73.766722°
Verifications
0
Last checked
Never
# HART ISLAND BEACON — NGS KU3798 — New York, US NGS triangulation station KU3798 is a surveying control point located on Hart Island, New York (40.8449°N, 73.7667°W). Established as part of the national geodetic network, this trig station provides horizontal and vertical control for precision surveying operations throughout the New York metropolitan area. The beacon supports RTK GNSS positioning, static GNSS sessions for high-accuracy work, differential leveling surveys, and network densification projects. As a published NGS mark with established ellipsoidal heights and horizontal coordinates in NAD83, it serves as a reference for construction staking, engineering surveys, cadastral mapping, and local network adjustments. Surveyors should verify current accessibility and condition before field operations.

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HART ISLAND BEACON — NGS KU3798 — 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 #636815 on SurveyingPedia. Its coordinates in WGS84 are 40.844903°, -73.766722°, corresponding to 40° 50′ 41.65″ N, 73° 46′ 0.20″ 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 HART ISLAND BEACON — NGS KU3798 — 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)40.844903, -73.766722
WGS84 (DMS)40° 50′ 41.65″ N, 73° 46′ 0.20″ 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
HART IS SPEED COURSE TRIPOD — NGS KU3796 — New York, US
0.1 km away · US
US NGS · triangulation station
HART IS PRISON PWR PLT CHIM — NGS KU3795 — New York, US
0.7 km away · US
US NGS · triangulation station
HART ISLAND 1908 — NGS KU3794 — New York, US
1.2 km away · US
US NGS · triangulation station
HEWLETT — NGS KU3848 — Village of Kings Point, US
1.4 km away · US
US NGS · triangulation station
KINGSPOINT — NGS KU3839 — Village of Kings Point, US
1.4 km away · US
GeoNames topographic database · cape
Hewlett Point
1.4 km away · US

Frequently asked questions

What is HART ISLAND BEACON — NGS KU3798 — New York, US?

HART ISLAND BEACON — NGS KU3798 — New York, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #636815. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of HART ISLAND BEACON — NGS KU3798 — New York, US?

The position of HART ISLAND BEACON — NGS KU3798 — New York, US in WGS84 is 40.844903°, -73.766722° (decimal), or 40° 50′ 41.65″ N, 73° 46′ 0.20″ 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.