WEBSTER — NGS SY1871 — King County, US

USNGStrigunknown#213979
Latitude
47.449036°
Longitude
-122.012364°
Ortho h
210.00 m
Verifications
0
Last checked
Never
This triangulation station is part of the NGS network, which establishes the geodetic framework for precise surveying and mapping throughout the United States. Located in King County, Washington at coordinates 47.44904°, -122.01236°, this trig point served as a control station for horizontal positioning within regional survey networks. Triangulation stations of this type are fundamental monuments that define accurate latitude and longitude positions for subsequent detailed surveys, engineering projects, and geographic information systems. The station's continued documentation and accessibility support modern surveying practices and provide verification points for contemporary positioning technologies including GPS and GNSS networks. Surveyors rely on such established control points to maintain consistency across municipal, state, and national mapping initiatives. Regular verification of benchmark coordinates and physical condition ensures the ongoing reliability of the nation's geodetic infrastructure for both professional surveyors and public land management purposes.

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WEBSTER — NGS SY1871 — King County, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #213979 on SurveyingPedia and sits at an approximate elevation of 210.0 metres. Its coordinates in WGS84 are 47.449036°, -122.012364°, corresponding to 47° 26′ 56.53″ N, 122° 0′ 44.51″ 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 WEBSTER — NGS SY1871 — 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)47.449036, -122.012364
WGS84 (DMS)47° 26′ 56.53″ N, 122° 0′ 44.51″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation210.00 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
EP 32 — NGS SY1904 — King County, US
2.1 km away · US
US NGS · triangulation station
KIDNAP — NGS SX1401 — King County, US
2.2 km away · US
US NGS · triangulation station
EP 19 — NGS SY1902 — King County, US
2.7 km away · US
US NGS · triangulation station
CUT — NGS SX1387 — King County, US
3.3 km away · US
US NGS · triangulation station
ER 9 — NGS SX1435 — King County, US
3.6 km away · US
US NGS · triangulation station
ER 10 — NGS SX1434 — King County, US
3.8 km away · US

Frequently asked questions

What is WEBSTER — NGS SY1871 — King County, US?

WEBSTER — NGS SY1871 — King County, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #213979 and sits at an elevation of 210.0 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of WEBSTER — NGS SY1871 — King County, US?

The position of WEBSTER — NGS SY1871 — King County, US in WGS84 is 47.449036°, -122.012364° (decimal), or 47° 26′ 56.53″ N, 122° 0′ 44.51″ 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.