ER 24 — NGS SX1416 — King County, US

USNGStrigunknown#213824
Latitude
47.478179°
Longitude
-121.891458°
Ortho h
238.80 m
Verifications
0
Last checked
Never
This triangulation station is part of the NGS network, which establishes the fundamental geodetic control for surveying and mapping throughout the United States. Located in King County, Washington at coordinates 47.47818° N, 121.89146° W, this trig point serves as a horizontal control reference for regional surveys and mapping projects. Triangulation stations of this type were historically positioned to provide accurate horizontal positioning data across areas of interest. The point's role within the broader NGS framework supports cadastral surveys, infrastructure development, and geographic information systems throughout the Pacific Northwest region. Verification and documentation of such benchmarks remains valuable for the surveying profession, as these reference points provide continuity with historical surveys and ensure positional accuracy for modern geodetic work. Maintenance of these records supports long-term spatial data integrity across government, commercial, and academic surveying applications.

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ER 24 — NGS SX1416 — 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 #213824 on SurveyingPedia and sits at an approximate elevation of 238.8 metres. Its coordinates in WGS84 are 47.478179°, -121.891458°, corresponding to 47° 28′ 41.45″ N, 121° 53′ 29.25″ 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 ER 24 — NGS SX1416 — 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)47.478179, -121.891458
WGS84 (DMS)47° 28′ 41.45″ N, 121° 53′ 29.25″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation238.80 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
ER 23 — NGS SX1417 — King County, US
0.5 km away · US
US NGS · triangulation station
ER 25 — NGS SX1415 — King County, US
0.6 km away · US
US NGS · triangulation station
ER 22 — NGS SX1418 — King County, US
0.7 km away · US
US NGS · triangulation station
ER 21 — NGS SX1419 — King County, US
1.3 km away · US
US NGS · triangulation station
ER 26 — NGS SX1414 — King County, US
1.7 km away · US
US NGS · triangulation station
ER 4 — NGS SX1412 — King County, US
1.9 km away · US

Frequently asked questions

What is ER 24 — NGS SX1416 — King County, US?

ER 24 — NGS SX1416 — King County, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #213824 and sits at an elevation of 238.8 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of ER 24 — NGS SX1416 — King County, US?

The position of ER 24 — NGS SX1416 — King County, US in WGS84 is 47.478179°, -121.891458° (decimal), or 47° 28′ 41.45″ N, 121° 53′ 29.25″ 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.