3R3 A — NGS AB6440 — Austin, US

USNGStrigunknown#3644
Latitude
30.408891°
Longitude
-97.666578°
Ellipsoidal h
193.18 m
Ortho h
219.23 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey network, which establishes and maintains the foundational control points supporting all surveying and mapping activities across the United States. Located near Austin, Texas at coordinates 30.40889°N, 97.66658°W with an ellipsoidal elevation of 193.2 meters, this trig point serves as a reference monument for horizontal and vertical positioning. Triangulation stations of this type are critical benchmarks used to tie local surveys to the national geodetic datum, ensuring consistency and accuracy across projects. The monument's documented location and elevation enable surveyors and engineers to verify instrument calibration, establish local control networks, and maintain spatial reference integrity. Regular verification of such points is essential for preserving the accuracy of the geodetic infrastructure and ensuring reliable positioning data for construction, infrastructure development, and scientific applications.

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3R3 A — NGS AB6440 — Austin, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #3644 on SurveyingPedia and sits at an approximate elevation of 219.2 metres. Its coordinates in WGS84 are 30.408891°, -97.666578°, corresponding to 30° 24′ 32.01″ N, 97° 39′ 59.68″ 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 3R3 A — NGS AB6440 — Austin, 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)30.408891, -97.666578
WGS84 (DMS)30° 24′ 32.01″ N, 97° 39′ 59.68″ W
UTM zone (approx.)Zone 14N (approx.)
Elevation219.23 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
EXECUTIVE — NGS BM1090 — Austin, US
0.5 km away · US
US NGS · triangulation station
G 1306 — NGS BM0812 — Austin, US
0.7 km away · US
US NGS · triangulation station
EXECUTIVE AZ MK — NGS BM1092 — Austin, US
1.3 km away · US
US NGS · triangulation station
E 1306 — NGS BM0813 — Austin, US
1.3 km away · US
US NGS · triangulation station
D 1306 — NGS BM0811 — Austin, US
1.8 km away · US
US NGS · triangulation station
F 1306 — NGS BM0814 — Austin, US
2.3 km away · US

Frequently asked questions

What is 3R3 A — NGS AB6440 — Austin, US?

3R3 A — NGS AB6440 — Austin, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #3644 and sits at an elevation of 219.2 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of 3R3 A — NGS AB6440 — Austin, US?

The position of 3R3 A — NGS AB6440 — Austin, US in WGS84 is 30.408891°, -97.666578° (decimal), or 30° 24′ 32.01″ N, 97° 39′ 59.68″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 14N (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.