SL 49 — NGS AA8690 — Crestwood, US

USNGStrigunknown#7311
Latitude
38.554623°
Longitude
-90.366247°
Ellipsoidal h
145.22 m
Ortho h
176.20 m
Verifications
0
Last checked
Never
This trigonometric station is part of the National Geodetic Survey's horizontal and vertical control network, which provides the foundational reference framework for surveying, mapping, and engineering projects across the United States. Located near Crestwood, Missouri, at coordinates 38.55462° North, 90.36625° West, this point serves as a precisely established spatial reference for regional surveys and positioning activities. Trigonometric stations of this type were traditionally used to extend accurate positional control across large areas through sight lines between elevated or intervisible points. The documented ellipsoidal elevation of 145.2 meters contributes to the three-dimensional control network essential for modern geospatial applications. Verification and maintenance of such benchmarks remain valuable for confirming network integrity, validating survey work, and supporting applications dependent on accurate geodetic control. This point represents the systematic infrastructure underlying contemporary surveying practice.

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SL 49 — NGS AA8690 — Crestwood, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #7311 on SurveyingPedia and sits at an approximate elevation of 176.2 metres. Its coordinates in WGS84 are 38.554623°, -90.366247°, corresponding to 38° 33′ 16.64″ N, 90° 21′ 58.49″ 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 SL 49 — NGS AA8690 — Crestwood, 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)38.554623, -90.366247
WGS84 (DMS)38° 33′ 16.64″ N, 90° 21′ 58.49″ W
UTM zone (approx.)Zone 15N (approx.)
Elevation176.20 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
F 205 — NGS JC0219 — Oakland, US
2.9 km away · US
US NGS · triangulation station
SL 01 — NGS AA8607 — Webster Groves, US
3.1 km away · US
US NGS · triangulation station
SL 55 — NGS AA8696 — Saint Louis County, US
3.1 km away · US
US NGS · triangulation station
SL 11 — NGS AA8628 — Saint Louis County, US
3.2 km away · US
US NGS · triangulation station
G 205 — NGS JC0218 — Webster Groves, US
3.4 km away · US
US NGS · triangulation station
E 205 — NGS JC0220 — Kirkwood, US
3.8 km away · US

Frequently asked questions

What is SL 49 — NGS AA8690 — Crestwood, US?

SL 49 — NGS AA8690 — Crestwood, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #7311 and sits at an elevation of 176.2 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of SL 49 — NGS AA8690 — Crestwood, US?

The position of SL 49 — NGS AA8690 — Crestwood, US in WGS84 is 38.554623°, -90.366247° (decimal), or 38° 33′ 16.64″ N, 90° 21′ 58.49″ 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.