A 284 — NGS JC1190 — Granite City, US

USNGStrigunknown#7285
Latitude
38.795000°
Longitude
-90.113333°
Ortho h
136.15 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 Granite City, Illinois, at coordinates 38.79500°, -90.11333°, this trig point serves as a reference for determining accurate horizontal positions in the region. Triangulation stations function as precise control points for surveyors, engineers, and cartographers conducting boundary surveys, infrastructure projects, and mapping work. The NGS network integrates these distributed points to maintain consistent spatial reference systems across state and county jurisdictions. Documentation and verification of such benchmarks is critical for professional surveying practice, ensuring that local surveys align with national geodetic standards. Surveyors regularly consulted these established points to propagate accurate coordinates for property boundaries, construction projects, and geographic data collection.

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A 284 — NGS JC1190 — Granite City, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #7285 on SurveyingPedia and sits at an approximate elevation of 136.2 metres. Its coordinates in WGS84 are 38.795000°, -90.113333°, corresponding to 38° 47′ 42.00″ N, 90° 6′ 48.00″ 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 A 284 — NGS JC1190 — Granite City, 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)38.795000, -90.113333
WGS84 (DMS)38° 47′ 42.00″ N, 90° 6′ 48.00″ W
UTM zone (approx.)Zone 15N (approx.)
Elevation136.15 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
M 283 — NGS JC1189 — Granite City, US
1.3 km away · US
US NGS · triangulation station
N 283 — NGS JC1188 — Granite City, US
2.8 km away · US
US NGS · triangulation station
Q 283 — NGS JC1187 — Madison, US
4.1 km away · US
US NGS · triangulation station
B 284 — NGS JC1170 — Madison, US
4.2 km away · US
US NGS · triangulation station
B 95 — NGS JC0149 — Madison County, US
4.2 km away · US
US NGS · triangulation station
A 95 — NGS JC0148 — Edwardsville, US
4.5 km away · US

Frequently asked questions

What is A 284 — NGS JC1190 — Granite City, US?

A 284 — NGS JC1190 — Granite City, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #7285 and sits at an elevation of 136.2 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of A 284 — NGS JC1190 — Granite City, US?

The position of A 284 — NGS JC1190 — Granite City, US in WGS84 is 38.795000°, -90.113333° (decimal), or 38° 47′ 42.00″ N, 90° 6′ 48.00″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 15N (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.