RD 7 — NGS SY0211 — King County, US

USNGStrigunknown#213948
Latitude
47.693889°
Longitude
-122.046944°
Ortho h
163.53 m
Verifications
0
Last checked
Never
This is a triangulation station within the National Geodetic Survey's network, which forms the foundation of the United States' horizontal control infrastructure. Located in King County, Washington at 47.69389°N, 122.04694°W, this trig point serves as a precise reference for surveying, mapping, and engineering projects throughout its region. Triangulation stations like this were historically established to create a framework of accurately positioned points across the country. Such marks enable surveyors to determine relative positions of property boundaries, infrastructure, and geographic features with confidence. The documented coordinate values allow professionals to verify the point's horizontal position and assess its utility for contemporary work. Verification and maintenance of these reference points remain valuable for quality control in modern surveying operations and for understanding the historical development of geodetic networks in the Pacific Northwest.

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RD 7 — NGS SY0211 — 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 #213948 on SurveyingPedia and sits at an approximate elevation of 163.5 metres. Its coordinates in WGS84 are 47.693889°, -122.046944°, corresponding to 47° 41′ 38.00″ N, 122° 2′ 49.00″ 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 RD 7 — NGS SY0211 — 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)47.693889, -122.046944
WGS84 (DMS)47° 41′ 38.00″ N, 122° 2′ 49.00″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation163.53 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
F 385 RESET — NGS SY0214 — King County, US
0.1 km away · US
US NGS · triangulation station
SILER — NGS SY3543 — King County, US
0.8 km away · US
US NGS · triangulation station
GRADE — NGS SY3545 — King County, US
0.9 km away · US
US NGS · triangulation station
J 150 — NGS SY0212 — King County, US
0.9 km away · US
US NGS · triangulation station
J 69 K CO 1938 — NGS SY3538 — King County, US
1.0 km away · US
US NGS · triangulation station
J 66 — NGS SY0210 — King County, US
1.4 km away · US

Frequently asked questions

What is RD 7 — NGS SY0211 — King County, US?

RD 7 — NGS SY0211 — King County, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #213948 and sits at an elevation of 163.5 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of RD 7 — NGS SY0211 — King County, US?

The position of RD 7 — NGS SY0211 — King County, US in WGS84 is 47.693889°, -122.046944° (decimal), or 47° 41′ 38.00″ N, 122° 2′ 49.00″ 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.