S 283 — NGS JC1185 — Madison, US

USNGStrigunknown#7272
Latitude
38.756944°
Longitude
-90.165000°
Ortho h
132.58 m
Verifications
0
Last checked
Never
This triangulation station is part of the NGS network, which comprises fundamental control points distributed across the United States to establish horizontal and vertical reference datums. Trig stations serve as essential nodes in geodetic surveys, providing accurate positions for mapping, engineering projects, and scientific research. Located near Madison, Illinois, at coordinates 38.75694°N, 90.16500°W, this point contributes to regional surveying infrastructure in the lower Mississippi River valley area. Triangulation stations of this type were historically established through intervisible networks, allowing surveyors to extend precise positional control across large territories. The documentation and verification of such benchmarks remains valuable for modern surveying applications, including GPS validation, GIS projects, and cadastral work. Maintaining accurate records of established control points ensures continuity in surveying practices and supports quality assurance in spatial data collection.

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S 283 — NGS JC1185 — Madison, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #7272 on SurveyingPedia and sits at an approximate elevation of 132.6 metres. Its coordinates in WGS84 are 38.756944°, -90.165000°, corresponding to 38° 45′ 25.00″ N, 90° 9′ 54.00″ 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 S 283 — NGS JC1185 — Madison, 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)38.756944, -90.165000
WGS84 (DMS)38° 45′ 25.00″ N, 90° 9′ 54.00″ W
UTM zone (approx.)Zone 15N (approx.)
Elevation132.58 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
R 283 — NGS JC1186 — Madison, US
1.7 km away · US
US NGS · triangulation station
A 323 — NGS JC1184 — St. Louis, US
1.7 km away · US
US NGS · triangulation station
A 283 — NGS JC1169 — Granite City, US
1.9 km away · US
US NGS · triangulation station
CSL 24A — NGS AA8585 — St. Louis, US
1.9 km away · US
US NGS · triangulation station
CSL 24 — NGS AA8584 — St. Louis, US
2.3 km away · US
US NGS · triangulation station
B 323 — NGS JC1183 — St. Louis, US
2.4 km away · US

Frequently asked questions

What is S 283 — NGS JC1185 — Madison, US?

S 283 — NGS JC1185 — Madison, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #7272 and sits at an elevation of 132.6 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of S 283 — NGS JC1185 — Madison, US?

The position of S 283 — NGS JC1185 — Madison, US in WGS84 is 38.756944°, -90.165000° (decimal), or 38° 45′ 25.00″ N, 90° 9′ 54.00″ 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.