U 161 — NGS OC0231 — Biddeford, US

USNGStrigunknown#637460
Latitude
43.466523°
Longitude
-70.470538°
Ellipsoidal h
21.91 m
Ortho h
48.25 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's control network, which establishes the fundamental reference framework for surveying and mapping throughout the United States. Located near Biddeford, Maine, at coordinates 43.46652° N, 70.47054° W and an ellipsoidal height of 21.9 meters, this trig point serves as a stable reference for horizontal and vertical positioning. Triangulation stations of this classification provide critical control points for surveyors, engineers, and cartographers conducting work in the region. The trig network enables accurate delineation of property boundaries, infrastructure development, and geographic information systems applications. Verification and documentation of existing control points ensures the integrity of Maine's geodetic infrastructure and supports continued reliance on these stations for contemporary surveying practices. Proper maintenance and archival of such benchmark data preserves essential positioning references for future surveying activities.

Verify this point

Sign in to submit a verification from the field.

Verification history (0)

No verifications yet. Be the first to check this point!
🛰️ Satellite view
ESRI World Imagery · zoom 16 (~1 m/px)
Open in Google Earth →
Satellite imagery of U 161 — NGS OC0231 — Biddeford, US, USSatellite imagery of U 161 — NGS OC0231 — Biddeford, US, USSatellite imagery of U 161 — NGS OC0231 — Biddeford, US, USSatellite imagery of U 161 — NGS OC0231 — Biddeford, US, USSatellite imagery of U 161 — NGS OC0231 — Biddeford, US, USSatellite imagery of U 161 — NGS OC0231 — Biddeford, US, USSatellite imagery of U 161 — NGS OC0231 — Biddeford, US, USSatellite imagery of U 161 — NGS OC0231 — Biddeford, US, USSatellite imagery of U 161 — NGS OC0231 — Biddeford, US, US
🗺️ Google Maps🚗 Street View🅱️ Bing Maps🌐 OpenStreetMap
Imagery © Esri · Earthstar Geographics · USGS · NASA · All providers credited

U 161 — NGS OC0231 — Biddeford, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #637460 on SurveyingPedia and sits at an approximate elevation of 48.3 metres. Its coordinates in WGS84 are 43.466523°, -70.470538°, corresponding to 43° 27′ 59.48″ N, 70° 28′ 13.94″ 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 U 161 — NGS OC0231 — Biddeford, 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)43.466523, -70.470538
WGS84 (DMS)43° 27′ 59.48″ N, 70° 28′ 13.94″ W
UTM zone (approx.)Zone 19N (approx.)
Elevation48.25 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
B19 A — NGS AB2643 — Biddeford, US
0.2 km away · US
US NGS · triangulation station
T 161 — NGS OC0230 — Biddeford, US
0.3 km away · US
US NGS · triangulation station
S 161 — NGS OC0229 — Biddeford, US
0.3 km away · US
US NGS · triangulation station
BIDDE — NGS OC2775 — Biddeford, US
0.5 km away · US
US NGS · triangulation station
B19 B — NGS AB2644 — Biddeford, US
0.8 km away · US
US NGS · triangulation station
P 161 — NGS OC0228 — Biddeford, US
1.1 km away · US

Frequently asked questions

What is U 161 — NGS OC0231 — Biddeford, US?

U 161 — NGS OC0231 — Biddeford, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #637460 and sits at an elevation of 48.3 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of U 161 — NGS OC0231 — Biddeford, US?

The position of U 161 — NGS OC0231 — Biddeford, US in WGS84 is 43.466523°, -70.470538° (decimal), or 43° 27′ 59.48″ N, 70° 28′ 13.94″ 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.