J 150 — NGS SY0212 — King County, US

USNGStrigunknown#213957
Latitude
47.694722°
Longitude
-122.035556°
Ortho h
184.85 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network of control points established to support surveying, mapping, and engineering projects across the United States. Located in King County, Washington, at coordinates 47.69472° N, 122.03556° W, this trig point serves as a reference for horizontal position control in the region. Trig stations of this class function as fixed monuments with precisely determined locations, enabling surveyors and cartographers to establish accurate local coordinate systems and validate survey work. The NGS network represents fundamental geodetic infrastructure critical to land surveying, infrastructure development, and spatial data accuracy. Verification and documentation of such control points remain essential to maintaining survey standards and ensuring the reliability of geographic information systems throughout the Pacific Northwest and beyond.

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J 150 — NGS SY0212 — 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 #213957 on SurveyingPedia and sits at an approximate elevation of 184.8 metres. Its coordinates in WGS84 are 47.694722°, -122.035556°, corresponding to 47° 41′ 41.00″ N, 122° 2′ 8.00″ 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 J 150 — NGS SY0212 — 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)47.694722, -122.035556
WGS84 (DMS)47° 41′ 41.00″ N, 122° 2′ 8.00″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation184.85 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
GRADE — NGS SY3545 — King County, US
0.0 km away · US
US NGS · triangulation station
F 385 RESET — NGS SY0214 — King County, US
0.8 km away · US
US NGS · triangulation station
J 69 K CO 1938 — NGS SY3538 — King County, US
0.8 km away · US
US NGS · triangulation station
RD 7 — NGS SY0211 — King County, US
0.9 km away · US
US NGS · triangulation station
H 385 — NGS SY0216 — King County, US
1.1 km away · US
US NGS · triangulation station
SILER — NGS SY3543 — King County, US
1.5 km away · US

Frequently asked questions

What is J 150 — NGS SY0212 — King County, US?

J 150 — NGS SY0212 — King County, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #213957 and sits at an elevation of 184.8 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of J 150 — NGS SY0212 — King County, US?

The position of J 150 — NGS SY0212 — King County, US in WGS84 is 47.694722°, -122.035556° (decimal), or 47° 41′ 41.00″ N, 122° 2′ 8.00″ 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.