H 1197 — NGS HS3571 — Concord, US

USNGStrigunknown#2256
Latitude
37.961222°
Longitude
-121.982306°
Ortho h
66.32 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's control network, which establishes the fundamental horizontal and vertical reference framework for the United States. Located near Concord, California, this trig point serves as a precisely positioned reference for surveying, mapping, and engineering projects across the region. Triangulation stations like this one were historically established to provide accurate geographic coordinates for large-scale surveying operations. The network remains valuable for modern applications including cadastral surveys, infrastructure development, and scientific studies requiring stable geodetic references. Verification and documentation of existing control points ensures the integrity of the geodetic infrastructure and facilitates continuity in surveying practice. Professionals conducting fieldwork in this area may reference this station for establishing local control networks or validating positioning equipment. Current coordinate information and accessibility conditions are essential for practical field application.

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H 1197 — NGS HS3571 — Concord, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #2256 on SurveyingPedia and sits at an approximate elevation of 66.3 metres. Its coordinates in WGS84 are 37.961222°, -121.982306°, corresponding to 37° 57′ 40.40″ N, 121° 58′ 56.30″ 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 H 1197 — NGS HS3571 — Concord, 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)37.961222, -121.982306
WGS84 (DMS)37° 57′ 40.40″ N, 121° 58′ 56.30″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation66.32 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
Z 790 RESET — NGS HS3570 — Concord, US
0.0 km away · US
US NGS · triangulation station
L 935 — NGS HS3568 — Concord, US
1.4 km away · US
US NGS · triangulation station
A 791 — NGS HS3572 — Concord, US
1.7 km away · US
US NGS · triangulation station
Y 790 RESET — NGS HT0152 — Concord, US
1.8 km away · US
US NGS · triangulation station
C 178 — NGS HS5125 — Concord, US
2.7 km away · US
US NGS · triangulation station
COWELL — NGS HS5124 — Walnut Creek, US
3.1 km away · US

Frequently asked questions

What is H 1197 — NGS HS3571 — Concord, US?

H 1197 — NGS HS3571 — Concord, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #2256 and sits at an elevation of 66.3 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of H 1197 — NGS HS3571 — Concord, US?

The position of H 1197 — NGS HS3571 — Concord, US in WGS84 is 37.961222°, -121.982306° (decimal), or 37° 57′ 40.40″ N, 121° 58′ 56.30″ 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.