MAGNUSON 2 — NGS AI3603 — Seattle, US

USNGStrigunknown#214486
Latitude
47.682270°
Longitude
-122.249046°
Ortho h
21.50 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network, which establishes the fundamental horizontal and vertical control framework for the United States. As a trig point, it serves as a precisely positioned reference for surveying, mapping, and engineering projects across Washington State and beyond. Located near Seattle, Washington at coordinates 47.68227°, -122.24905°, this benchmark provides surveyors and geodetic professionals with a monumented control point of known position. Trig stations historically formed the backbone of large-scale surveys and remain valuable for verification, densification, and quality assurance in modern surveying operations. The documentation and preservation of such control points are essential to maintaining the integrity of the National Spatial Reference System. Field verification of existing benchmarks helps identify any displacement or degradation and supports the accuracy requirements of contemporary surveying, construction, and geospatial applications throughout the region.

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MAGNUSON 2 — NGS AI3603 — Seattle, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #214486 on SurveyingPedia and sits at an approximate elevation of 21.5 metres. Its coordinates in WGS84 are 47.682270°, -122.249046°, corresponding to 47° 40′ 56.17″ N, 122° 14′ 56.57″ 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 MAGNUSON 2 — NGS AI3603 — Seattle, 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)47.682270, -122.249046
WGS84 (DMS)47° 40′ 56.17″ N, 122° 14′ 56.57″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation21.50 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
OLD TACAN TOWER — NGS SY3808 — Seattle, US
0.1 km away · US
US NGS · triangulation station
MAGNUSON ECC — NGS AI3604 — Seattle, US
0.1 km away · US
US NGS · triangulation station
MIDIX — NGS SY3810 — Seattle, US
0.2 km away · US
US NGS · triangulation station
SOUND — NGS AI3614 — Seattle, US
0.3 km away · US
US NGS · triangulation station
N 1 OF 2 VENTS ON BLDG 312 — NGS SY3807 — Seattle, US
0.3 km away · US
GeoNames topographic database · cape
Sand Point
0.3 km away · US

Frequently asked questions

What is MAGNUSON 2 — NGS AI3603 — Seattle, US?

MAGNUSON 2 — NGS AI3603 — Seattle, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #214486 and sits at an elevation of 21.5 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of MAGNUSON 2 — NGS AI3603 — Seattle, US?

The position of MAGNUSON 2 — NGS AI3603 — Seattle, US in WGS84 is 47.682270°, -122.249046° (decimal), or 47° 40′ 56.17″ N, 122° 14′ 56.57″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 10N (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.