C 377 — NGS HS3618 — Antioch, US

USNGStrigunknown#2118
Latitude
37.968333°
Longitude
-121.801111°
Ortho h
55.33 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's primary control network, which establishes the geometric foundation for surveying and mapping throughout the United States. Located in the Antioch, California region at coordinates 37.96833°N, 121.80111°W, this trig point serves as a reference for horizontal positioning and network densification in the East Bay area. Triangulation stations of this classification provide essential control for surveyors, engineers, and mapping professionals conducting boundary surveys, infrastructure projects, and geographic data collection. The station's elevation was not recorded during documentation. Verification and maintenance of such benchmarks remain critical for preserving the accuracy and integrity of the national geodetic infrastructure, ensuring that modern surveying activities maintain consistency with established reference systems. Professional surveyors should verify current monument condition before relying on this point for precision work.

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C 377 — NGS HS3618 — Antioch, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #2118 on SurveyingPedia and sits at an approximate elevation of 55.3 metres. Its coordinates in WGS84 are 37.968333°, -121.801111°, corresponding to 37° 58′ 6.00″ N, 121° 48′ 4.00″ 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 C 377 — NGS HS3618 — Antioch, 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)37.968333, -121.801111
WGS84 (DMS)37° 58′ 6.00″ N, 121° 48′ 4.00″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation55.33 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
A 377 — NGS HS3617 — Antioch, US
0.3 km away · US
US NGS · triangulation station
GPS CONTROL PT 60 — NGS DE8509 — Antioch, US
0.6 km away · US
US NGS · triangulation station
N 563 — NGS HS3616 — Antioch, US
1.1 km away · US
US NGS · triangulation station
M 563 — NGS HS3615 — Antioch, US
1.2 km away · US
US NGS · triangulation station
123.11 — NGS HS3614 — Antioch, US
1.6 km away · US
US NGS · triangulation station
Z 376 RESET — NGS HS3613 — Antioch, US
1.9 km away · US

Frequently asked questions

What is C 377 — NGS HS3618 — Antioch, US?

C 377 — NGS HS3618 — Antioch, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #2118 and sits at an elevation of 55.3 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of C 377 — NGS HS3618 — Antioch, US?

The position of C 377 — NGS HS3618 — Antioch, US in WGS84 is 37.968333°, -121.801111° (decimal), or 37° 58′ 6.00″ N, 121° 48′ 4.00″ 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.