C 137 — NGS ME1888 — Chicago, US

USNGStrigunknown#215529
Latitude
41.809167°
Longitude
-87.628611°
Ortho h
184.12 m
Verifications
0
Last checked
Never
This trigonometric station is part of the NGS network, which establishes the primary geodetic control for the United States. Trig points of this classification serve as reference stations for horizontal positioning and triangulation work, providing essential control for surveying, mapping, and engineering projects across large areas. Located near Chicago, Illinois, at coordinates 41.80917° N, -87.62861° W, this point contributes to regional geodetic infrastructure in the Midwest. The elevation was not recorded in available documentation. Verification and maintenance of benchmark monuments like this support continuity in the national spatial reference system. Survey professionals rely on these control points to establish local datums, validate modern positioning technologies, and ensure consistency across successive surveying campaigns. Documentation of such points remains valuable for long-term geodetic integrity and professional surveying operations.

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C 137 — NGS ME1888 — Chicago, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #215529 on SurveyingPedia and sits at an approximate elevation of 184.1 metres. Its coordinates in WGS84 are 41.809167°, -87.628611°, corresponding to 41° 48′ 33.00″ N, 87° 37′ 43.00″ 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 C 137 — NGS ME1888 — 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)41.809167, -87.628611
WGS84 (DMS)41° 48′ 33.00″ N, 87° 37′ 43.00″ W
UTM zone (approx.)Zone 16N (approx.)
Elevation184.12 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
044 — NGS ME2721 — Chicago, US
0.2 km away · US
US NGS · triangulation station
DALEY — NGS ME2724 — Chicago, US
0.5 km away · US
US NGS · triangulation station
DALEY RM 1 — NGS ME3346 — Chicago, US
0.5 km away · US
US NGS · triangulation station
DALEY RM 2 — NGS ME3347 — Cook County, US
0.5 km away · US
US NGS · triangulation station
045 COC — NGS ME2769 — Chicago, US
0.6 km away · US
US NGS · triangulation station
D 137 — NGS ME1889 — Chicago, US
0.8 km away · US

Frequently asked questions

What is C 137 — NGS ME1888 — Chicago, US?

C 137 — NGS ME1888 — Chicago, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #215529 and sits at an elevation of 184.1 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of C 137 — NGS ME1888 — Chicago, US?

The position of C 137 — NGS ME1888 — Chicago, US in WGS84 is 41.809167°, -87.628611° (decimal), or 41° 48′ 33.00″ N, 87° 37′ 43.00″ 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.