L 311 — NGS JC0211 — Maplewood, US

USNGStrigunknown#7337
Latitude
38.603333°
Longitude
-90.325000°
Ortho h
137.22 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's fundamental control network, which establishes the geometric framework for surveying and mapping throughout the United States. As a trig point, this benchmark served to extend horizontal control across the landscape through intervisible sight lines, supporting both precise surveying operations and cartographic accuracy. Located near Maplewood, Missouri, at coordinates 38.60333° north latitude and 90.32500° west longitude, this point occupies a position within the greater St. Louis metropolitan region. Trig stations of this class were historically crucial for establishing accurate positions before modern satellite-based positioning systems became available. Verification and documentation of NGS benchmarks remain valuable for surveying professionals conducting control surveys, validating equipment performance, and maintaining spatial reference continuity. Even as technology evolves, these monumented control points provide stable, independent verification of coordinate systems and remain important references for professional surveying practice.

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L 311 — NGS JC0211 — Maplewood, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #7337 on SurveyingPedia and sits at an approximate elevation of 137.2 metres. Its coordinates in WGS84 are 38.603333°, -90.325000°, corresponding to 38° 36′ 12.00″ N, 90° 19′ 30.00″ 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 L 311 — NGS JC0211 — Maplewood, 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)38.603333, -90.325000
WGS84 (DMS)38° 36′ 12.00″ N, 90° 19′ 30.00″ W
UTM zone (approx.)Zone 15N (approx.)
Elevation137.22 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
L 205 — NGS JC0210 — Maplewood, US
0.1 km away · US
US NGS · triangulation station
K 311 — NGS JC0209 — Maplewood, US
0.1 km away · US
US NGS · triangulation station
SL 02 — NGS AA8608 — Maplewood, US
1.0 km away · US
US NGS · triangulation station
M 205 — NGS JC0208 — Maplewood, US
1.1 km away · US
US NGS · triangulation station
K 205 — NGS JC0212 — Webster Groves, US
1.4 km away · US
US NGS · triangulation station
N 311 — NGS JC0213 — Webster Groves, US
1.7 km away · US

Frequently asked questions

What is L 311 — NGS JC0211 — Maplewood, US?

L 311 — NGS JC0211 — Maplewood, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #7337 and sits at an elevation of 137.2 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of L 311 — NGS JC0211 — Maplewood, US?

The position of L 311 — NGS JC0211 — Maplewood, US in WGS84 is 38.603333°, -90.325000° (decimal), or 38° 36′ 12.00″ N, 90° 19′ 30.00″ 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.