SK007 — NGS AJ2495 — Skokie, US

USNGStrigunknown#215631
Latitude
42.062720°
Longitude
-87.767292°
Ellipsoidal h
155.97 m
Ortho h
189.80 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's control network, which establishes the geometric framework for surveying and mapping across the United States. Located near Skokie, Illinois, at latitude 42.06272° and longitude -87.76729°, this trig point serves as a permanent reference for horizontal positioning in the Chicago metropolitan region. The ellipsoidal elevation of 156.0 meters contributes to three-dimensional surveying operations. Triangulation stations of this type historically provided essential control for large-scale mapping projects and continue to support modern surveying activities, including GPS validation and local datum work. Regular verification and maintenance of such benchmark monuments ensures the integrity of the nation's surveying infrastructure and enables surveyors to execute precise measurements with confidence. Documentation of these control points remains valuable for both historical continuity and contemporary geodetic applications.

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SK007 — NGS AJ2495 — Skokie, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #215631 on SurveyingPedia and sits at an approximate elevation of 189.8 metres. Its coordinates in WGS84 are 42.062720°, -87.767292°, corresponding to 42° 3′ 45.79″ N, 87° 46′ 2.25″ 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 SK007 — NGS AJ2495 — Skokie, 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)42.062720, -87.767292
WGS84 (DMS)42° 3′ 45.79″ N, 87° 46′ 2.25″ W
UTM zone (approx.)Zone 16N (approx.)
Elevation189.80 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
SKOKIE COOK CO CORS ARP — NGS DO7621
0.1 km away · US
US NGS · triangulation station
SK017 — NGS AJ2481 — Skokie, US
0.9 km away · US
US NGS · triangulation station
SK008 — NGS AJ2494 — Skokie, US
1.7 km away · US
US NGS · triangulation station
M 134 — NGS NG0241 — Wilmette, US
1.9 km away · US
US NGS · triangulation station
SK006 — NGS AJ2491 — Skokie, US
2.0 km away · US
US NGS · triangulation station
N 134 — NGS NG0242 — Glenview, US
2.1 km away · US

Frequently asked questions

What is SK007 — NGS AJ2495 — Skokie, US?

SK007 — NGS AJ2495 — Skokie, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #215631 and sits at an elevation of 189.8 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of SK007 — NGS AJ2495 — Skokie, US?

The position of SK007 — NGS AJ2495 — Skokie, US in WGS84 is 42.062720°, -87.767292° (decimal), or 42° 3′ 45.79″ N, 87° 46′ 2.25″ 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.