B 311 — NGS JC0193 — St. Louis, US

USNGStrigunknown#7093
Latitude
38.626444°
Longitude
-90.200000°
Ortho h
141.93 m
Verifications
0
Last checked
Never
This trigonometric station is part of the National Geodetic Survey's network of reference points establishing the geometric framework for the United States. Located near St. Louis, Missouri, at coordinates 38.62644° N, 90.20000° W, this trig point serves as a fundamental control station for surveying and mapping activities across its region. Trigonometric stations of this type were established to provide accurate horizontal control for cadastral surveys, engineering projects, and cartographic work. The NGS network remains essential infrastructure for surveyors, engineers, and spatial professionals requiring reliable geodetic references. Documentation and verification of such benchmark locations preserve critical surveying infrastructure and support the integrity of coordinate-based records. Professional surveyors rely on these established points to maintain consistency in local and regional coordinate systems and to validate modern positioning technologies.

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B 311 — NGS JC0193 — St. Louis, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #7093 on SurveyingPedia and sits at an approximate elevation of 141.9 metres. Its coordinates in WGS84 are 38.626444°, -90.200000°, corresponding to 38° 37′ 35.20″ N, 90° 12′ 0.00″ 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 B 311 — NGS JC0193 — St. Louis, 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)38.626444, -90.200000
WGS84 (DMS)38° 37′ 35.20″ N, 90° 12′ 0.00″ W
UTM zone (approx.)Zone 15N (approx.)
Elevation141.93 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
V 205 — NGS JC0192 — St. Louis, US
0.2 km away · US
US NGS · triangulation station
U 205 — NGS JC0194 — St. Louis, US
0.7 km away · US
US NGS · triangulation station
ST LOUIS COURTHOUSE — NGS JC1598 — St. Louis, US
0.9 km away · US
US NGS · triangulation station
C 311 — NGS JC0197 — St. Louis, US
1.1 km away · US
US NGS · triangulation station
A 311 — NGS JC0188 — St. Louis, US
1.3 km away · US
US NGS · triangulation station
A 226 — NGS JC0044 — St. Louis, US
1.4 km away · US

Frequently asked questions

What is B 311 — NGS JC0193 — St. Louis, US?

B 311 — NGS JC0193 — St. Louis, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #7093 and sits at an elevation of 141.9 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of B 311 — NGS JC0193 — St. Louis, US?

The position of B 311 — NGS JC0193 — St. Louis, US in WGS84 is 38.626444°, -90.200000° (decimal), or 38° 37′ 35.20″ N, 90° 12′ 0.00″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 15N (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.