GIS 5 — NGS AC7688 — Baltimore, US

USNGStrigunknown#635058
Latitude
39.256648°
Longitude
-76.532235°
Ellipsoidal h
-30.02 m
Ortho h
2.93 m
Verifications
0
Last checked
Never
This trigonometric station is part of the National Geodetic Survey's network, which establishes the foundational control framework for surveying and mapping throughout the United States. Located near Baltimore, Maryland, at coordinates 39.25665°N, 76.53223°W with an ellipsoidal elevation of -30.0 meters, this trig point serves as a precise reference for local and regional surveying operations. Trigonometric stations of this type provide monumented positions with known three-dimensional coordinates, enabling surveyors to establish local control networks and verify positional accuracy for property surveys, engineering projects, and geographic data collection. The NGS network remains essential infrastructure for professional surveying practice. Documentation and periodic verification of such benchmarks ensure their continued reliability and accessibility for the surveying community, supporting both historical research and contemporary surveying requirements.

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GIS 5 — NGS AC7688 — Baltimore, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #635058 on SurveyingPedia and sits at an approximate elevation of 2.9 metres. Its coordinates in WGS84 are 39.256648°, -76.532235°, corresponding to 39° 15′ 23.93″ N, 76° 31′ 56.04″ 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 GIS 5 — NGS AC7688 — Baltimore, 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)39.256648, -76.532235
WGS84 (DMS)39° 15′ 23.93″ N, 76° 31′ 56.04″ W
UTM zone (approx.)Zone 18N (approx.)
Elevation2.93 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
ST HELENA USE 1916 — NGS JV5508 — Baltimore, US
0.0 km away · US
US NGS · triangulation station
6984 — NGS AI8114 — Baltimore, US
0.3 km away · US
US NGS · triangulation station
DMT 1 — NGS DK7505 — Baltimore, US
0.3 km away · US
US NGS · triangulation station
DMT 5 — NGS DS3186 — Baltimore, US
0.3 km away · US
US NGS · triangulation station
WES 2 — NGS JV5609 — Baltimore, US
0.7 km away · US
US NGS · triangulation station
DMT 4 — NGS DQ4480 — Dundalk, US
0.7 km away · US

Frequently asked questions

What is GIS 5 — NGS AC7688 — Baltimore, US?

GIS 5 — NGS AC7688 — Baltimore, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #635058 and sits at an elevation of 2.9 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of GIS 5 — NGS AC7688 — Baltimore, US?

The position of GIS 5 — NGS AC7688 — Baltimore, US in WGS84 is 39.256648°, -76.532235° (decimal), or 39° 15′ 23.93″ N, 76° 31′ 56.04″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 18N (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.