CLAY — NGS HS3573 — Clayton, US

USNGStrigunknown#2221
Latitude
37.948333°
Longitude
-121.950278°
Ortho h
110.26 m
Verifications
0
Last checked
Never
This NGS triangulation station is located near Clayton in Contra Costa County, California, at coordinates 37.94833°N, 121.95028°W. As a trig point within the National Geodetic Survey's network, it serves as a fundamental control station for establishing accurate horizontal positions across the United States. Triangulation stations of this type have provided the geometric framework for large-scale surveying, mapping, and engineering projects throughout their operational history. The point's location in the San Francisco Bay Area region positions it within a densely surveyed zone critical to regional infrastructure development. Verification and proper documentation of such benchmarks remain valuable for surveyors performing boundary work, construction layout, and geodetic research. Maintaining accurate records of these control points supports the continuity of the national geodetic datum and enables professionals to reference reliable spatial data for contemporary surveying applications.

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CLAY — NGS HS3573 — Clayton, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #2221 on SurveyingPedia and sits at an approximate elevation of 110.3 metres. Its coordinates in WGS84 are 37.948333°, -121.950278°, corresponding to 37° 56′ 54.00″ N, 121° 57′ 1.00″ 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 CLAY — NGS HS3573 — Clayton, 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)37.948333, -121.950278
WGS84 (DMS)37° 56′ 54.00″ N, 121° 57′ 1.00″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation110.26 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
J 1197 — NGS HS3574 — Clayton, US
0.0 km away · US
US NGS · triangulation station
CLAYTON RM 2 — NGS HS3575
0.6 km away · US
US NGS · triangulation station
CLAYTON RM 1 — NGS HS3577
0.7 km away · US
US NGS · triangulation station
CLAYTON AZ MK — NGS HS3578
1.0 km away · US
US NGS · triangulation station
GPS CONTROL PT 26 — NGS DE8492 — Clayton, US
1.3 km away · US
US NGS · triangulation station
A 791 — NGS HS3572 — Concord, US
1.4 km away · US

Frequently asked questions

What is CLAY — NGS HS3573 — Clayton, US?

CLAY — NGS HS3573 — Clayton, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #2221 and sits at an elevation of 110.3 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of CLAY — NGS HS3573 — Clayton, US?

The position of CLAY — NGS HS3573 — Clayton, US in WGS84 is 37.948333°, -121.950278° (decimal), or 37° 56′ 54.00″ N, 121° 57′ 1.00″ 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.