PTC 047.3 — NGS AJ4874 — Harmar Township, US

USNGStrigunknown#633242
Latitude
40.548689°
Longitude
-79.823205°
Ellipsoidal h
224.72 m
Ortho h
258.40 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network, which provides the foundational geodetic control for surveying and mapping throughout the United States. Located in Harmar Township, Pennsylvania, at coordinates 40.54869° North, 79.82320° West, this trig point serves as a precisely established reference location for horizontal control work. The ellipsoidal elevation of 224.7 meters provides vertical reference information within the geodetic framework. Triangulation stations of this type historically supported survey networks used for mapping, engineering projects, and boundary establishment across the country. Modern verification and documentation of these control points remains valuable for surveying professionals, as they provide continuity with legacy survey work and support quality assurance in contemporary surveying operations. Maintaining accurate records of such benchmarks ensures their availability for future survey work and geodetic research.

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PTC 047.3 — NGS AJ4874 — Harmar Township, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #633242 on SurveyingPedia and sits at an approximate elevation of 258.4 metres. Its coordinates in WGS84 are 40.548689°, -79.823205°, corresponding to 40° 32′ 55.28″ N, 79° 49′ 23.54″ 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 PTC 047.3 — NGS AJ4874 — Harmar Township, 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)40.548689, -79.823205
WGS84 (DMS)40° 32′ 55.28″ N, 79° 49′ 23.54″ W
UTM zone (approx.)Zone 17N (approx.)
Elevation258.40 m
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
PTC 047.2 — NGS AJ4875 — Harmar Township, US
0.7 km away · US
US NGS · triangulation station
L/D 3 M4 — NGS DO5147 — Harmar Township, US
1.5 km away · US
US NGS · triangulation station
14 L — NGS KX1550 — Plum, US
1.5 km away · US
US NGS · triangulation station
L/D 3 M1 — NGS DO5146 — Plum, US
1.6 km away · US
US NGS · triangulation station
14 A — NGS KX1549 — Plum, US
1.6 km away · US
US NGS · triangulation station
47 B — NGS KX1551 — Oakmont, US
2.3 km away · US

Frequently asked questions

What is PTC 047.3 — NGS AJ4874 — Harmar Township, US?

PTC 047.3 — NGS AJ4874 — Harmar Township, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #633242 and sits at an elevation of 258.4 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of PTC 047.3 — NGS AJ4874 — Harmar Township, US?

The position of PTC 047.3 — NGS AJ4874 — Harmar Township, US in WGS84 is 40.548689°, -79.823205° (decimal), or 40° 32′ 55.28″ N, 79° 49′ 23.54″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 17N (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.