UM 112 — NGS DP3016 — Saint Clair County, US

USNGStrigunknown#6772
Latitude
38.559653°
Longitude
-90.022392°
Ortho h
173.63 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's extensive network of control points established to provide accurate horizontal positioning data across the United States. As a trigonometric station, this benchmark serves as a surveying reference point used in geodetic networks and land surveys throughout its region. Located in Saint Clair County, Illinois, at coordinates 38.55965°N, 90.02239°W, this point contributes to the foundational infrastructure supporting cadastral surveys, engineering projects, and mapping activities. Trig stations of this type are typically situated at elevated or prominent locations to facilitate sightline measurements between control points. Verification and documentation of such benchmarks remain essential for maintaining the integrity of the national geodetic datum and ensuring consistency in surveying work. The accessibility and preservation of these reference points continue to provide value to surveying professionals and spatial data applications.

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Imagery © Esri · Earthstar Geographics · USGS · NASA · All providers credited

UM 112 — NGS DP3016 — Saint Clair County, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #6772 on SurveyingPedia and sits at an approximate elevation of 173.6 metres. Its coordinates in WGS84 are 38.559653°, -90.022392°, corresponding to 38° 33′ 34.75″ N, 90° 1′ 20.61″ 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 UM 112 — NGS DP3016 — Saint Clair County, 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)38.559653, -90.022392
WGS84 (DMS)38° 33′ 34.75″ N, 90° 1′ 20.61″ W
UTM zone (approx.)Zone 15N (approx.)
Elevation173.63 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
UM 113 — NGS DP3017 — Belleville, US
0.6 km away · US
US NGS · triangulation station
UM 111 — NGS DP3015 — Belleville, US
1.3 km away · US
US NGS · triangulation station
UM 114 — NGS DP3018 — Belleville, US
1.4 km away · US
US NGS · triangulation station
UM 115 — NGS DP3019 — Belleville, US
2.6 km away · US
US NGS · triangulation station
UM 116 — NGS DP3020 — Fairview Heights, US
3.6 km away · US
US NGS · triangulation station
K 114 — NGS JC0119 — Belleville, US
4.0 km away · US

Frequently asked questions

What is UM 112 — NGS DP3016 — Saint Clair County, US?

UM 112 — NGS DP3016 — Saint Clair County, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #6772 and sits at an elevation of 173.6 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of UM 112 — NGS DP3016 — Saint Clair County, US?

The position of UM 112 — NGS DP3016 — Saint Clair County, US in WGS84 is 38.559653°, -90.022392° (decimal), or 38° 33′ 34.75″ N, 90° 1′ 20.61″ 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.