CSL 12 — NGS AA8572 — St. Louis, US

USNGStrigunknown#7215
Latitude
38.604053°
Longitude
-90.204502°
Ellipsoidal h
100.82 m
Ortho h
131.80 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network of control points that form the foundation of the United States' geodetic infrastructure. Located in the St. Louis, Missouri area at coordinates 38.60405°N, 90.20450°W, this trig point serves as a reference for horizontal and vertical positioning throughout the region. The ellipsoidal elevation of 100.8 meters provides vertical control data essential for surveying, mapping, and engineering projects. Triangulation stations like this were established to create a framework of accurately positioned monuments, historically using theodolite observations to interconnect points across distances. Modern surveyors and GIS professionals rely on these benchmarks for ground truthing, establishing local coordinate systems, and verifying contemporary positioning technologies. Proper documentation and periodic verification of such control points ensure the integrity of regional spatial data and support continued accuracy in cadastral surveys, infrastructure development, and emergency response operations.

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CSL 12 — NGS AA8572 — 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 #7215 on SurveyingPedia and sits at an approximate elevation of 131.8 metres. Its coordinates in WGS84 are 38.604053°, -90.204502°, corresponding to 38° 36′ 14.59″ N, 90° 12′ 16.21″ 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 CSL 12 — NGS AA8572 — 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)38.604053, -90.204502
WGS84 (DMS)38° 36′ 14.59″ N, 90° 12′ 16.21″ W
UTM zone (approx.)Zone 15N (approx.)
Elevation131.80 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
ST LOUIS BOHEMIAN CHURCH — NGS JC1590 — St. Louis, US
0.9 km away · US
US NGS · triangulation station
H 311 — NGS JC0196 — St. Louis, US
1.0 km away · US
US NGS · triangulation station
G 311 — NGS JC0195 — St. Louis, US
1.0 km away · US
US NGS · triangulation station
T 58 — NGS JC0110 — St. Louis, US
1.6 km away · US
US NGS · triangulation station
ST LOUIS INTL SHOE CO STACK — NGS JC1589 — St. Louis, US
1.8 km away · US
US NGS · triangulation station
M 284 — NGS JC1149 — Sauget, US
1.9 km away · US

Frequently asked questions

What is CSL 12 — NGS AA8572 — St. Louis, US?

CSL 12 — NGS AA8572 — St. Louis, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #7215 and sits at an elevation of 131.8 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of CSL 12 — NGS AA8572 — St. Louis, US?

The position of CSL 12 — NGS AA8572 — St. Louis, US in WGS84 is 38.604053°, -90.204502° (decimal), or 38° 36′ 14.59″ N, 90° 12′ 16.21″ 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.