325 — NGS DP2525 — Chicago, US

USNGStrigunknown#214941
Latitude
41.737889°
Longitude
-87.584500°
Ortho h
177.74 m
Verifications
0
Last checked
Never
This trigonometric station is part of the National Geodetic Survey's reference network, which establishes the geometric framework for surveying and mapping throughout the United States. Trig points serve as primary control stations, providing precise horizontal position data for regional and local surveying operations. Located near Chicago, Illinois, this benchmark occupies a position within the surveying infrastructure supporting the Great Lakes region. The coordinates 41.73789°, -87.58450° define its location with high precision relative to the North American Datum. Documentation and periodic verification of such control points remain essential for maintaining survey accuracy across successive generations of mapping projects. Surveyors and geospatial professionals rely upon these established references to ensure consistency in property boundaries, infrastructure development, and land-based measurements. The absence of recorded elevation data may indicate the primary focus on horizontal control or the need for supplementary documentation efforts.

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325 — NGS DP2525 — Chicago, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #214941 on SurveyingPedia and sits at an approximate elevation of 177.7 metres. Its coordinates in WGS84 are 41.737889°, -87.584500°, corresponding to 41° 44′ 16.40″ N, 87° 35′ 4.20″ 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 325 — NGS DP2525 — 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)41.737889, -87.584500
WGS84 (DMS)41° 44′ 16.40″ N, 87° 35′ 4.20″ W
UTM zone (approx.)Zone 16N (approx.)
Elevation177.74 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
060 COC — NGS ME2910 — Chicago, US
0.7 km away · US
US NGS · triangulation station
S 136 — NGS ME1874 — Chicago, US
0.9 km away · US
US NGS · triangulation station
CHICAGO ARGON ELEC RAD TWR — NGS ME2894
0.9 km away · US
US NGS · triangulation station
AVALON — NGS ME2893 — Chicago, US
1.0 km away · US
US NGS · triangulation station
AVALON RM 1 — NGS ME3352 — Chicago, US
1.0 km away · US
US NGS · triangulation station
AVALON RM 2 — NGS ME3351 — Chicago, US
1.0 km away · US

Frequently asked questions

What is 325 — NGS DP2525 — Chicago, US?

325 — NGS DP2525 — Chicago, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #214941 and sits at an elevation of 177.7 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of 325 — NGS DP2525 — Chicago, US?

The position of 325 — NGS DP2525 — Chicago, US in WGS84 is 41.737889°, -87.584500° (decimal), or 41° 44′ 16.40″ N, 87° 35′ 4.20″ 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.