SL 48 — NGS AA8689 — Glendale, US

USNGStrigunknown#7328
Latitude
38.595789°
Longitude
-90.386508°
Ellipsoidal h
156.48 m
Ortho h
187.60 m
Verifications
0
Last checked
Never
This trigonometric station is part of the National Geodetic Survey's network of control points that establish the geometric framework for surveying and mapping activities across the United States. Located near Glendale, Missouri, at coordinates 38.59579° N, 90.38651° W, this benchmark serves as a reference for horizontal and vertical positioning in the St. Louis metropolitan region. Trig stations of this type were established to provide surveyors, engineers, and mapping professionals with accurate geodetic control for boundary determination, construction projects, and cartographic work. The ellipsoidal elevation of 156.5 meters contributes to three-dimensional positioning capability within the NGS datum framework. Verification and documentation of such control points remain essential for maintaining survey accuracy and integrity across generations of construction and development projects.

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SL 48 — NGS AA8689 — Glendale, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #7328 on SurveyingPedia and sits at an approximate elevation of 187.6 metres. Its coordinates in WGS84 are 38.595789°, -90.386508°, corresponding to 38° 35′ 44.84″ N, 90° 23′ 11.43″ 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 48 — NGS AA8689 — Glendale, 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)38.595789, -90.386508
WGS84 (DMS)38° 35′ 44.84″ N, 90° 23′ 11.43″ W
UTM zone (approx.)Zone 15N (approx.)
Elevation187.60 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
Q 311 — NGS JC0217 — Webster Groves, US
1.7 km away · US
US NGS · triangulation station
G 205 — NGS JC0218 — Webster Groves, US
1.8 km away · US
US NGS · triangulation station
H 205 — NGS JC0216 — Webster Groves, US
2.0 km away · US
US NGS · triangulation station
F 205 — NGS JC0219 — Oakland, US
2.1 km away · US
US NGS · triangulation station
E 205 — NGS JC0220 — Kirkwood, US
2.3 km away · US
US NGS · triangulation station
SL 01 — NGS AA8607 — Webster Groves, US
2.9 km away · US

Frequently asked questions

What is SL 48 — NGS AA8689 — Glendale, US?

SL 48 — NGS AA8689 — Glendale, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #7328 and sits at an elevation of 187.6 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of SL 48 — NGS AA8689 — Glendale, US?

The position of SL 48 — NGS AA8689 — Glendale, US in WGS84 is 38.595789°, -90.386508° (decimal), or 38° 35′ 44.84″ N, 90° 23′ 11.43″ 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.