RV 21 — NGS NG0125 — Wilmette, US

USNGStrigunknown#215669
Latitude
42.070000°
Longitude
-87.703333°
Ortho h
187.00 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network, which establishes the fundamental control framework for surveying and mapping activities throughout the United States. Located near Wilmette, Illinois, this trig point serves as a horizontal control monument for geodetic and surveying operations in the Chicago metropolitan area region. Triangulation stations of this type were historically established to provide accurate positional references across geographic networks. The coordinates 42.07000° N, 87.70333° W mark its published position within the NGS database. Such monuments support professional surveyors, engineers, and mapping professionals requiring precise horizontal datum connections for their work. Verification and documentation of geodetic control points remain valuable for maintaining data integrity within the national network. As survey methods and technologies evolve, confirming the continued existence and condition of established monuments ensures their continued utility for future surveying projects and geodetic applications in the region.

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RV 21 — NGS NG0125 — Wilmette, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #215669 on SurveyingPedia and sits at an approximate elevation of 187.0 metres. Its coordinates in WGS84 are 42.070000°, -87.703333°, corresponding to 42° 4′ 12.00″ N, 87° 42′ 12.00″ 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 RV 21 — NGS NG0125 — Wilmette, 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)42.070000, -87.703333
WGS84 (DMS)42° 4′ 12.00″ N, 87° 42′ 12.00″ 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
K 18 — NGS NG0126 — Wilmette, US
0.2 km away · US
US NGS · triangulation station
RV 20 — NGS NG0124 — Evanston, US
1.1 km away · US
US NGS · triangulation station
WILMETTE — NGS NG0127
1.1 km away · US
US NGS · triangulation station
RV 22 — NGS NG0128 — Wilmette, US
1.3 km away · US
US NGS · triangulation station
H 274 — NGS NG0123 — Evanston, US
1.6 km away · US
US NGS · triangulation station
WILMETTE BAHAI HOUSE WORSHIP — NGS NG0498
1.6 km away · US

Frequently asked questions

What is RV 21 — NGS NG0125 — Wilmette, US?

RV 21 — NGS NG0125 — Wilmette, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #215669 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 RV 21 — NGS NG0125 — Wilmette, US?

The position of RV 21 — NGS NG0125 — Wilmette, US in WGS84 is 42.070000°, -87.703333° (decimal), or 42° 4′ 12.00″ N, 87° 42′ 12.00″ 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.