OLD WHARF WEST CORNER SPILE — NGS OC2423 — Portsmouth, US

USNGStrigunknown#637869
Latitude
43.093175°
Longitude
-70.770664°
Verifications
0
Last checked
Never
This trigonometric station is part of the National Geodetic Survey's network of horizontal control points that form the foundational reference framework for surveying and mapping throughout the United States. Located near Portsmouth, New Hampshire, at coordinates 43.09318°, -70.77066°, this trig point serves as a precisely positioned reference for surveys, construction projects, and geographic information systems in the region. As a trig station, it was historically established through triangulation methods to support accurate positioning across large areas. The point's documented location enables surveyors and engineers to tie local measurements to the national geodetic datum, ensuring consistency and accuracy in spatial data. Verification and documentation of such control points remain essential for maintaining the integrity of the nation's surveying infrastructure and supporting critical applications in land surveying, engineering, and geographic research.

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OLD WHARF WEST CORNER SPILE — NGS OC2423 — Portsmouth, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #637869 on SurveyingPedia. Its coordinates in WGS84 are 43.093175°, -70.770664°, corresponding to 43° 5′ 35.43″ N, 70° 46′ 14.39″ 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 OLD WHARF WEST CORNER SPILE — NGS OC2423 — Portsmouth, 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)43.093175, -70.770664
WGS84 (DMS)43° 5′ 35.43″ N, 70° 46′ 14.39″ W
UTM zone (approx.)Zone 19N (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
CLIFF 1900 — NGS OC2421 — Portsmouth, US
0.2 km away · US
US NGS · triangulation station
842 3528 TIDAL 2 — NGS OC0298 — Portsmouth, US
0.2 km away · US
US NGS · triangulation station
COLE — NGS OC2426 — Eliot, US
0.2 km away · US
US NGS · triangulation station
ELIOT H SPINNEYS STORE S GABLE — NGS OC2434
0.5 km away · US
US NGS · triangulation station
K 28 — NGS OC0292 — Portsmouth, US
0.6 km away · US
GeoNames topographic database · cape
Freemans Point
0.8 km away · US

Frequently asked questions

What is OLD WHARF WEST CORNER SPILE — NGS OC2423 — Portsmouth, US?

OLD WHARF WEST CORNER SPILE — NGS OC2423 — Portsmouth, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #637869. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of OLD WHARF WEST CORNER SPILE — NGS OC2423 — Portsmouth, US?

The position of OLD WHARF WEST CORNER SPILE — NGS OC2423 — Portsmouth, US in WGS84 is 43.093175°, -70.770664° (decimal), or 43° 5′ 35.43″ N, 70° 46′ 14.39″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 19N (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.