L 147 — NGS JC0022 — Washington Park, US

USNGStrigunknown#6920
Latitude
38.636806°
Longitude
-90.079806°
Ortho h
126.85 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's classical trig network, which forms a foundational component of the United States' surveying and mapping infrastructure. Located near Washington Park in Illinois at coordinates 38.63681°N, 90.07981°W, this point serves as a reference marker for establishing accurate horizontal control in regional surveys. Triangulation stations of this type were established to create a precise geodetic framework enabling surveyors, engineers, and cartographers to conduct measurements and positioning with reliable accuracy. The point's documented location contributes to the broader NGS network, which remains valuable for verification, validation, and adjustment of contemporary GPS and survey-grade positioning data. Maintenance and documentation of such benchmarks support continuity in geodetic operations and provide historical reference standards for land boundary establishment and infrastructure development throughout the region.

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L 147 — NGS JC0022 — Washington Park, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #6920 on SurveyingPedia and sits at an approximate elevation of 126.8 metres. Its coordinates in WGS84 are 38.636806°, -90.079806°, corresponding to 38° 38′ 12.50″ N, 90° 4′ 47.30″ 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 L 147 — NGS JC0022 — Washington Park, 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)38.636806, -90.079806
WGS84 (DMS)38° 38′ 12.50″ N, 90° 4′ 47.30″ W
UTM zone (approx.)Zone 15N (approx.)
Elevation126.85 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
V 169 — NGS JC0021 — Saint Clair County, US
0.0 km away · US
US NGS · triangulation station
K 147 — NGS JC0023 — Washington Park, US
0.9 km away · US
US NGS · triangulation station
WASHINGTON PARK ST MARTIN CH — NGS JC1576
1.3 km away · US
US NGS · triangulation station
M 147 — NGS JC0020 — Fairmont City, US
1.5 km away · US
US NGS · triangulation station
HARDING RM 2 — NGS JC0162 — Saint Clair County, US
1.6 km away · US
US NGS · triangulation station
HARDING — NGS JC0163 — Saint Clair County, US
1.6 km away · US

Frequently asked questions

What is L 147 — NGS JC0022 — Washington Park, US?

L 147 — NGS JC0022 — Washington Park, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #6920 and sits at an elevation of 126.8 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of L 147 — NGS JC0022 — Washington Park, US?

The position of L 147 — NGS JC0022 — Washington Park, US in WGS84 is 38.636806°, -90.079806° (decimal), or 38° 38′ 12.50″ N, 90° 4′ 47.30″ 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.