CALDWELL AZ MK — NGS ME3086 — Chicago, US

USNGStrigunknown#215732
Latitude
41.997321°
Longitude
-87.758056°
Ortho h
187.00 m
Verifications
0
Last checked
Never
This triangulation station is part of the NGS network, which establishes the fundamental geodetic framework for the United States. Located near Chicago, Illinois at coordinates 41.99732°, -87.75806°, this trig point serves as a precise reference for surveying and mapping activities across the region. Triangulation stations of this type provide monumented control points essential for horizontal positioning, cadastral surveys, and large-scale engineering projects. As a component of NGS infrastructure, this benchmark contributes to the national system of geodetic control that supports both public and private surveying work. Verification and documentation of such points remain valuable for surveyors and engineers requiring accurate positional references. Regular inspection of these monuments helps maintain data integrity within the control network and ensures continued utility for contemporary surveys and mapping initiatives.

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CALDWELL AZ MK — NGS ME3086 — Chicago, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #215732 on SurveyingPedia and sits at an approximate elevation of 187.0 metres. Its coordinates in WGS84 are 41.997321°, -87.758056°, corresponding to 41° 59′ 50.35″ N, 87° 45′ 29.00″ 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 CALDWELL AZ MK — NGS ME3086 — 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)41.997321, -87.758056
WGS84 (DMS)41° 59′ 50.35″ N, 87° 45′ 29.00″ W
UTM zone (approx.)Zone 16N (approx.)
Elevation187.00 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
CALDWELL — NGS ME3052 — Chicago, US
0.8 km away · US
US NGS · triangulation station
SK001 — NGS AJ2488 — Skokie, US
1.0 km away · US
US NGS · triangulation station
CHICAGO QUEEN ST CH SPIRE — NGS ME2866
1.1 km away · US
US NGS · triangulation station
CHICAGO WEDC RAD TOWER — NGS ME3053
2.1 km away · US
US NGS · triangulation station
SK002 — NGS AJ2476 — Skokie, US
2.2 km away · US
US NGS · triangulation station
007 COC — NGS ME2878 — Chicago, US
2.5 km away · US

Frequently asked questions

What is CALDWELL AZ MK — NGS ME3086 — Chicago, US?

CALDWELL AZ MK — NGS ME3086 — Chicago, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #215732 and sits at an elevation of 187.0 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of CALDWELL AZ MK — NGS ME3086 — Chicago, US?

The position of CALDWELL AZ MK — NGS ME3086 — Chicago, US in WGS84 is 41.997321°, -87.758056° (decimal), or 41° 59′ 50.35″ N, 87° 45′ 29.00″ 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.