MRC 18 — NGS DF7917 — East St. Louis, US

USNGStrigunknown#6898
Latitude
38.626469°
Longitude
-90.138519°
Ellipsoidal h
95.17 m
Ortho h
126.20 m
Verifications
0
Last checked
Never
This triangulation (trig) station is part of the National Geodetic Survey's control network, which establishes the geometric framework for mapping and surveying throughout the United States. Located near East St. Louis, Illinois, at coordinates 38.62647° N, 90.13852° W with an ellipsoidal elevation of 95.2 meters, this point serves as a fixed reference for horizontal and vertical positioning. Trig stations of this type have historically provided precise geodetic control across regions, supporting cadastral surveys, engineering projects, and cartographic work. The NGS network remains fundamental to national surveying infrastructure and GPS/GNSS validation efforts. Verification and documentation of such benchmarks ensure the integrity of survey connections in their respective areas. Professionals working in the region should confirm current monumentation status and horizontal/vertical datum specifications before field operations.

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MRC 18 — NGS DF7917 — East 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 #6898 on SurveyingPedia and sits at an approximate elevation of 126.2 metres. Its coordinates in WGS84 are 38.626469°, -90.138519°, corresponding to 38° 37′ 35.29″ N, 90° 8′ 18.67″ 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 MRC 18 — NGS DF7917 — East 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)38.626469, -90.138519
WGS84 (DMS)38° 37′ 35.29″ N, 90° 8′ 18.67″ W
UTM zone (approx.)Zone 15N (approx.)
Elevation126.20 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
C 147 — NGS JC0030 — East St. Louis, US
0.1 km away · US
US NGS · triangulation station
E ST LOUIS AZI — NGS DE9187 — East St. Louis, US
0.7 km away · US
US NGS · triangulation station
B 147 — NGS JC0031 — East St. Louis, US
0.8 km away · US
US NGS · triangulation station
B 147 RESET — NGS JC0032 — East St. Louis, US
0.8 km away · US
US NGS · triangulation station
D 147 — NGS JC0029 — East St. Louis, US
0.9 km away · US
US NGS · triangulation station
E ST LOUIS — NGS DE9188 — East St. Louis, US
0.9 km away · US

Frequently asked questions

What is MRC 18 — NGS DF7917 — East St. Louis, US?

MRC 18 — NGS DF7917 — East St. Louis, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #6898 and sits at an elevation of 126.2 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of MRC 18 — NGS DF7917 — East St. Louis, US?

The position of MRC 18 — NGS DF7917 — East St. Louis, US in WGS84 is 38.626469°, -90.138519° (decimal), or 38° 37′ 35.29″ N, 90° 8′ 18.67″ 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.