X 757 — NGS AI8099 — Baltimore, US

USNGStrigunknown#634959
Latitude
39.283186°
Longitude
-76.642815°
Ellipsoidal h
-6.04 m
Ortho h
26.60 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network, which establishes the foundational control for surveying and mapping across the United States. Located near Baltimore, Maryland, at coordinates 39.28319° N, 76.64281° W, this trig point serves as a precise horizontal control reference for regional geodetic work. The negative ellipsoidal elevation of -6.0 meters indicates the point's position relative to the WGS 84 ellipsoid. As a trigonometric station, this benchmark was historically established to support surveying operations through intervisibility networks, enabling accurate positioning for larger cadastral and engineering projects. Documentation and periodic verification of such control points remain essential to maintaining the integrity of the national geodetic framework. Survey professionals rely on established benchmarks to validate instrument calibration, extend local control networks, and ensure consistency in spatial data across jurisdictions.

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X 757 — NGS AI8099 — Baltimore, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #634959 on SurveyingPedia and sits at an approximate elevation of 26.6 metres. Its coordinates in WGS84 are 39.283186°, -76.642815°, corresponding to 39° 16′ 59.47″ N, 76° 38′ 34.13″ 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 X 757 — NGS AI8099 — 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)39.283186, -76.642815
WGS84 (DMS)39° 16′ 59.47″ N, 76° 38′ 34.13″ W
UTM zone (approx.)Zone 18N (approx.)
Elevation26.60 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
X 756 — NGS AI8098 — Baltimore, US
0.6 km away · US
US NGS · triangulation station
R 110 MDBCSM — NGS JV1296 — Baltimore, US
1.1 km away · US
US NGS · triangulation station
13.2 BORR — NGS JV0590 — Baltimore, US
1.4 km away · US
US NGS · triangulation station
RV 46 BORR — NGS JV0593 — Baltimore, US
1.4 km away · US
US NGS · triangulation station
W 111 RESET — NGS JV4038 — Baltimore, US
1.4 km away · US
US NGS · triangulation station
S 110 MDBCSM — NGS JV1297 — Baltimore, US
1.5 km away · US

Frequently asked questions

What is X 757 — NGS AI8099 — Baltimore, US?

X 757 — NGS AI8099 — Baltimore, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #634959 and sits at an elevation of 26.6 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of X 757 — NGS AI8099 — Baltimore, US?

The position of X 757 — NGS AI8099 — Baltimore, US in WGS84 is 39.283186°, -76.642815° (decimal), or 39° 16′ 59.47″ N, 76° 38′ 34.13″ 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.