E 791 — NGS HS3585 — Contra Costa County, US

USNGStrigunknown#2041
Latitude
37.902308°
Longitude
-121.869417°
Ortho h
216.78 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's horizontal control network, which forms the foundational framework for surveying and mapping across the United States. Located in Contra Costa County, California, at coordinates 37.90231° N, 121.86942° W, this trig point serves as a horizontal reference for establishing accurate positions in the region. Triangulation stations of this type were historically established to provide precise geodetic control across large areas through intervisible networks. The point's role within the NGS network supports cadastral surveys, engineering projects, and geographic information systems dependent on reliable positional data. Documentation and verification of such benchmarks remain valuable for the surveying community, ensuring continuity of reference systems and enabling quality assurance in contemporary mapping efforts. Surveyors should verify the physical monument condition and monument recovery status before use in critical applications.

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E 791 — NGS HS3585 — Contra Costa County, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #2041 on SurveyingPedia and sits at an approximate elevation of 216.8 metres. Its coordinates in WGS84 are 37.902308°, -121.869417°, corresponding to 37° 54′ 8.31″ N, 121° 52′ 9.90″ 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 E 791 — NGS HS3585 — Contra Costa 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)37.902308, -121.869417
WGS84 (DMS)37° 54′ 8.31″ N, 121° 52′ 9.90″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation216.78 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
GPS CONTROL POINT 25 — NGS AA3809 — Contra Costa County, US
0.3 km away · US
US NGS · triangulation station
A 1203 — NGS HS3586 — Contra Costa County, US
0.5 km away · US
US NGS · triangulation station
F 791 — NGS HS3587 — Contra Costa County, US
1.6 km away · US
US NGS · triangulation station
B 1203 — NGS HS3584 — Contra Costa County, US
1.7 km away · US
US NGS · triangulation station
955 — NGS HS3583 — Contra Costa County, US
1.7 km away · US
US NGS · triangulation station
Z 1202 — NGS HS3588 — Contra Costa County, US
2.2 km away · US

Frequently asked questions

What is E 791 — NGS HS3585 — Contra Costa County, US?

E 791 — NGS HS3585 — Contra Costa County, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #2041 and sits at an elevation of 216.8 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of E 791 — NGS HS3585 — Contra Costa County, US?

The position of E 791 — NGS HS3585 — Contra Costa County, US in WGS84 is 37.902308°, -121.869417° (decimal), or 37° 54′ 8.31″ N, 121° 52′ 9.90″ 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.