TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US

USNGStrigunknown#213993
Latitude
47.476525°
Longitude
-121.978247°
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network, which establishes and maintains the fundamental control points underlying the Nation's surveying and mapping infrastructure. Located in King County, Washington, at coordinates 47.47653° N, 121.97825° W, this trig point serves as a precisely positioned reference for horizontal control. Triangulation stations of this type were established to create a framework for accurate surveying and cartographic work across the United States. The point's documented position allows surveyors, engineers, and GIS professionals to tie local measurements into the national datum system with confidence. Verification and documentation of existing control points remain valuable for modern surveying operations, particularly in areas undergoing development or requiring updated spatial data. Maintaining records of such reference marks ensures continuity of the geodetic network and supports both historical and contemporary surveying needs.

Verify this point

Sign in to submit a verification from the field.

Verification history (0)

No verifications yet. Be the first to check this point!
🛰️ Satellite view
ESRI World Imagery · zoom 16 (~1 m/px)
Open in Google Earth →
Satellite imagery of TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US, USSatellite imagery of TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US, USSatellite imagery of TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US, USSatellite imagery of TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US, USSatellite imagery of TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US, USSatellite imagery of TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US, USSatellite imagery of TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US, USSatellite imagery of TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US, USSatellite imagery of TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US, US
🗺️ Google Maps🚗 Street View🅱️ Bing Maps🌐 OpenStreetMap
Imagery © Esri · Earthstar Geographics · USGS · NASA · All providers credited

TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — 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 #213993 on SurveyingPedia. Its coordinates in WGS84 are 47.476525°, -121.978247°, corresponding to 47° 28′ 35.49″ N, 121° 58′ 41.69″ 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 TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — 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)47.476525, -121.978247
WGS84 (DMS)47° 28′ 35.49″ N, 121° 58′ 41.69″ W
UTM zone (approx.)Zone 10N (approx.)
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
KIDNAP — NGS SX1401 — King County, US
1.9 km away · US
US NGS · triangulation station
TIGER SOUTH — NGS SX1391 — King County, US
2.3 km away · US
US NGS · triangulation station
TIGER MTN — NGS SX1409 — King County, US
2.7 km away · US
US NGS · triangulation station
TIGER MTN BUR NOR RR MICROWAVE — NGS SX1408 — King County, US
2.7 km away · US
US NGS · triangulation station
SNAG ON KNOLL W OF STA TIGER — NGS SX1404 — King County, US
2.8 km away · US
US NGS · triangulation station
ER 14 — NGS SX1426 — King County, US
2.9 km away · US

Frequently asked questions

What is TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US?

TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #213993. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US?

The position of TARGET RR TRESTLE W MTN SLOPE — NGS SX1400 — King County, US in WGS84 is 47.476525°, -121.978247° (decimal), or 47° 28′ 35.49″ N, 121° 58′ 41.69″ 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.