GPS90 5D2 — NGS SY5775 — King County, US

USNGSgnssunknown#214169
Latitude
47.689360°
Longitude
-122.087457°
Ellipsoidal h
1.81 m
Ortho h
25.30 m
Verifications
0
Last checked
Never
This GNSS benchmark is part of the National Geodetic Survey's network of reference stations supporting precise positioning infrastructure across the United States. Located in King County, Washington, at coordinates 47.68936° N, 122.08746° W, this point provides essential geodetic control for surveying, mapping, and spatial reference applications throughout the region. The station's ellipsoidal elevation of 1.8 meters is documented relative to the current reference datum. GNSS benchmarks such as this serve as fundamental reference points for surveyors, engineers, and geospatial professionals requiring accurate horizontal and vertical positioning. Regular verification and documentation of these control points ensures the integrity of local and national geodetic networks. The establishment and maintenance of such infrastructure enables consistent coordinate systems for infrastructure projects, land surveys, and scientific measurements. Surveyors operating in the Pacific Northwest benefit from this point's accessibility for datum transformation and quality assurance procedures.

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GPS90 5D2 — NGS SY5775 — King County, US is a GNSS reference point located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #214169 on SurveyingPedia and sits at an approximate elevation of 25.3 metres. Its coordinates in WGS84 are 47.689360°, -122.087457°, corresponding to 47° 41′ 21.69″ N, 122° 5′ 14.84″ 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 GPS90 5D2 — NGS SY5775 — King County, 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)47.689360, -122.087457
WGS84 (DMS)47° 41′ 21.69″ N, 122° 5′ 14.84″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation25.30 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
J 62 — NGS SY0207 — King County, US
0.3 km away · US
US NGS · GNSS reference point
GPS90 5E1 — NGS SY5777 — King County, US
0.7 km away · US
US NGS · triangulation station
D 385 — NGS SY0206 — Redmond, US
0.7 km away · US
US NGS · triangulation station
E 385 — NGS SY0208 — King County, US
0.9 km away · US
US NGS · triangulation station
GPS90 5D3 — NGS SY5776 — Redmond, US
0.9 km away · US
US NGS · triangulation station
GPS90 4E2 — NGS SY5766 — Redmond, US
1.2 km away · US

Frequently asked questions

What is GPS90 5D2 — NGS SY5775 — King County, US?

GPS90 5D2 — NGS SY5775 — King County, US is a GNSS reference point located in United States, catalogued in the US NGS network. It has the public identifier #214169 and sits at an elevation of 25.3 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of GPS90 5D2 — NGS SY5775 — King County, US?

The position of GPS90 5D2 — NGS SY5775 — King County, US in WGS84 is 47.689360°, -122.087457° (decimal), or 47° 41′ 21.69″ N, 122° 5′ 14.84″ 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 GNSS reference point?

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.