J 1197 — NGS HS3574 — Clayton, US

USNGStrigunknown#2218
Latitude
37.948194°
Longitude
-121.950444°
Ortho h
109.69 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network, which establishes the foundational control points for surveying and mapping across the United States. Positioned near Clayton, California at coordinates 37.94819°, -121.95044°, this trig point serves as a reference monument for horizontal control. Triangulation stations of this type were historically observed and computed to create accurate geographic frameworks supporting civil engineering, land surveying, and cartographic projects. The point's location in the East Bay region contributes to regional geodetic infrastructure. Modern surveyors and geospatial professionals rely on documented benchmark networks to validate measurements, conduct GPS/GNSS verification, and maintain survey accuracy standards. Proper documentation and periodic verification of such control points remain essential to the integrity of surveying data and land records in their respective jurisdictions.

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J 1197 — NGS HS3574 — Clayton, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #2218 on SurveyingPedia and sits at an approximate elevation of 109.7 metres. Its coordinates in WGS84 are 37.948194°, -121.950444°, corresponding to 37° 56′ 53.50″ N, 121° 57′ 1.60″ 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 J 1197 — NGS HS3574 — 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)37.948194, -121.950444
WGS84 (DMS)37° 56′ 53.50″ N, 121° 57′ 1.60″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation109.69 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
CLAY — NGS HS3573 — 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 J 1197 — NGS HS3574 — Clayton, US?

J 1197 — NGS HS3574 — Clayton, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #2218 and sits at an elevation of 109.7 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of J 1197 — NGS HS3574 — Clayton, US?

The position of J 1197 — NGS HS3574 — Clayton, US in WGS84 is 37.948194°, -121.950444° (decimal), or 37° 56′ 53.50″ N, 121° 57′ 1.60″ 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.