LB140

FRlocaltrigunknown#184
Latitude
49.765341°
Longitude
5.809461°
Verifications
0
Last checked
Never
This triangulation point forms part of a local geodetic network in France. Positioned at 49.76534°N, 5.80946°E, it serves as a horizontal control reference for surveying and mapping operations within its coverage area. Triangulation stations of this classification historically provided essential framework for establishing precise positional control across regions prior to modern satellite-based systems. The point's elevation remains undocumented in available records. As a trig station, it would have functioned to intervisible with other network points, enabling surveyors to propagate accurate coordinates across terrestrial measurement campaigns. Documentation and verification of such benchmarks remains valuable for establishing continuity of geodetic datums, validating historical survey work, and supporting specialized applications requiring independent horizontal control. Location of nearby towns or landmarks would assist field parties in recovery and inspection efforts.

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LB140 is a triangulation station located in France, catalogued in the local dataset. The point has been assigned the stable identifier #184 on SurveyingPedia. Its coordinates in WGS84 are 49.765341°, 5.809461°, corresponding to 49° 45′ 55.23″ N, 5° 48′ 34.06″ E 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 LB140 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)49.765341, 5.809461
WGS84 (DMS)49° 45′ 55.23″ N, 5° 48′ 34.06″ E
UTM zone (approx.)Zone 31N (approx.)
Precise conversionOpen in coordinate converter →

Geodetic context in France

The national geodetic reference in France is maintained by Institut Géographique National (IGN). The active datum is RGF93 / Lambert-93. 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 France you may need to convert to the local datum using the Coordinate Hub.

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

Nearby benchmarks

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

local · triangulation station
LB139
0.1 km away · FR
OpenStreetMap contributors · boundary_stone
LB141
0.3 km away · BE
local · triangulation station
LB138
0.6 km away · FR
OpenStreetMap contributors · boundary_stone
LB142
0.7 km away · BE
OpenStreetMap contributors · boundary_stone
LB137
1.0 km away · BE
OpenStreetMap contributors · boundary_stone
LB142a
1.3 km away · BE

Frequently asked questions

What is LB140?

LB140 is a triangulation station located in France, catalogued in the local network. It has the public identifier #184. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of LB140?

The position of LB140 in WGS84 is 49.765341°, 5.809461° (decimal), or 49° 45′ 55.23″ N, 5° 48′ 34.06″ E in degrees-minutes-seconds. For planar surveys in France this falls approximately in UTM Zone 31N (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 osm_public. Always refer to the original datasheet for the most up-to-date and authoritative data.