13 A 21 — NGS SY0082 — Snohomish County, US

USNGStrigunknown#214198
Latitude
47.856111°
Longitude
-122.289167°
Ortho h
185.41 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network, which forms the foundational control framework for surveying and mapping throughout the United States. Located in Snohomish County, Washington, at coordinates 47.85611°N, 122.28917°W, this trig point serves as a reference station for establishing horizontal positions of other survey monuments and geographic features. Triangulation stations like this are positioned to provide precise spatial control across regions, enabling surveyors, cartographers, and engineers to conduct accurate work. The station's documented coordinate values support cadastral surveys, infrastructure projects, and geodetic research. Verification and maintenance of such reference points remain important for preserving the integrity of the national spatial reference system and ensuring the reliability of derivative surveying work. Professionals undertaking work in this area should confirm the current status of this monument before use.

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13 A 21 — NGS SY0082 — Snohomish County, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #214198 on SurveyingPedia and sits at an approximate elevation of 185.4 metres. Its coordinates in WGS84 are 47.856111°, -122.289167°, corresponding to 47° 51′ 22.00″ N, 122° 17′ 21.00″ 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 13 A 21 — NGS SY0082 — Snohomish 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)47.856111, -122.289167
WGS84 (DMS)47° 51′ 22.00″ N, 122° 17′ 21.00″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation185.41 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
13 A 22 — NGS SY0085 — Snohomish County, US
0.5 km away · US
US NGS · triangulation station
Z 457 — NGS SY0079 — Snohomish County, US
0.5 km away · US
US NGS · triangulation station
Z 406 RESET — NGS SY0081 — Snohomish County, US
0.7 km away · US
US NGS · triangulation station
13 A 20 — NGS SY0073 — Snohomish County, US
0.7 km away · US
US NGS · triangulation station
ALDERWOOD RM 2 — NGS SY0076 — Snohomish County, US
0.8 km away · US
US NGS · triangulation station
ALDERWOOD — NGS SY0074 — Snohomish County, US
0.8 km away · US

Frequently asked questions

What is 13 A 21 — NGS SY0082 — Snohomish County, US?

13 A 21 — NGS SY0082 — Snohomish County, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #214198 and sits at an elevation of 185.4 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of 13 A 21 — NGS SY0082 — Snohomish County, US?

The position of 13 A 21 — NGS SY0082 — Snohomish County, US in WGS84 is 47.856111°, -122.289167° (decimal), or 47° 51′ 22.00″ N, 122° 17′ 21.00″ 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.