CHATHAM — NGS ME2981 — Chicago, US

USNGStrigunknown#215175
Latitude
41.745270°
Longitude
-87.629686°
Ortho h
179.20 m
Verifications
0
Last checked
Never
This triangulation station is part of the NGS network, which establishes and maintains the fundamental geodetic control for the United States. Trig stations serve as fixed reference points for surveying, mapping, and engineering projects by providing precise horizontal and vertical positioning data across regions. Located near Chicago, Illinois at coordinates 41.74527°N, 87.62969°W, this point contributes to local and regional survey networks. Triangulation monuments like this one are typically established on elevated or visible locations to facilitate sightings between multiple control points, enabling surveyors to measure distances and angles with high accuracy. Documentation and verification of existing geodetic monuments remain important for maintaining survey integrity and supporting infrastructure development, land records, and cadastral mapping. The preservation of benchmark data ensures continuity in surveying practices and supports both historical and contemporary positioning requirements.

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CHATHAM — NGS ME2981 — Chicago, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #215175 on SurveyingPedia and sits at an approximate elevation of 179.2 metres. Its coordinates in WGS84 are 41.745270°, -87.629686°, corresponding to 41° 44′ 42.97″ N, 87° 37′ 46.87″ 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 CHATHAM — NGS ME2981 — Chicago, 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)41.745270, -87.629686
WGS84 (DMS)41° 44′ 42.97″ N, 87° 37′ 46.87″ W
UTM zone (approx.)Zone 16N (approx.)
Elevation179.20 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
041 — NGS ME2962 — Chicago, US
0.5 km away · US
US NGS · triangulation station
CHICAGO RAD STA KA 4106 MAST — NGS ME2712
1.3 km away · US
US NGS · triangulation station
064 COC — NGS ME2688 — Chicago, US
1.9 km away · US
US NGS · triangulation station
063 COC — NGS ME2903 — Chicago, US
2.1 km away · US
US NGS · triangulation station
CHICAGO ST COLUMBIAN CH SPIRE — NGS ME2687
2.5 km away · US
US NGS · triangulation station
551 — NGS DO9272 — Chicago, US
2.7 km away · US

Frequently asked questions

What is CHATHAM — NGS ME2981 — Chicago, US?

CHATHAM — NGS ME2981 — Chicago, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #215175 and sits at an elevation of 179.2 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of CHATHAM — NGS ME2981 — Chicago, US?

The position of CHATHAM — NGS ME2981 — Chicago, US in WGS84 is 41.745270°, -87.629686° (decimal), or 41° 44′ 42.97″ N, 87° 37′ 46.87″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 16N (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.