I90 139.34 — NGS OS0621 — Jackson County, US

USNGStrigunknown#8266
Latitude
43.835556°
Longitude
-101.740000°
Ortho h
768.52 m
Verifications
0
Last checked
Never
This trigonometric station is part of the NGS geodetic network, which establishes the fundamental control framework for surveying and mapping throughout the United States. Trigonometric stations serve as precision reference points for horizontal positioning and are typically established at elevated or prominent locations to facilitate line-of-sight observations between stations. Located in Jackson County, South Dakota, at coordinates 43.83556° North, 101.74000° West, this benchmark contributes to the regional geodetic infrastructure of the northern Great Plains. The point's documented position supports land surveying, engineering projects, and spatial data collection activities across the area. Verification and maintenance of such geodetic control points remain essential for ensuring consistency in surveying operations and validating modern positioning technologies. Professional surveyors reference these established stations to confirm accuracy and traceability in their work, making documentation of their location and status a critical component of geodetic stewardship.

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I90 139.34 — NGS OS0621 — Jackson County, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #8266 on SurveyingPedia and sits at an approximate elevation of 768.5 metres. Its coordinates in WGS84 are 43.835556°, -101.740000°, corresponding to 43° 50′ 8.00″ N, 101° 44′ 24.00″ 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 I90 139.34 — NGS OS0621 — Jackson 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)43.835556, -101.740000
WGS84 (DMS)43° 50′ 8.00″ N, 101° 44′ 24.00″ W
UTM zone (approx.)Zone 14N (approx.)
Elevation768.52 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
E 7 N RM 2 — NGS OS0520 — Jackson County, US
0.2 km away · US
US NGS · triangulation station
E 7 M 2 RM 4 — NGS OS0525 — Jackson County, US
0.2 km away · US
US NGS · triangulation station
E 7 M 2 RM 3 — NGS OS0524 — Jackson County, US
0.2 km away · US
US NGS · triangulation station
E 7 N 2 RM 4 — NGS OS0518 — Jackson County, US
0.2 km away · US
US NGS · triangulation station
E 7 N 2 RM 3 — NGS OS0519 — Jackson County, US
0.2 km away · US
US NGS · triangulation station
F 387 — NGS OS0527 — Jackson County, US
0.9 km away · US

Frequently asked questions

What is I90 139.34 — NGS OS0621 — Jackson County, US?

I90 139.34 — NGS OS0621 — Jackson County, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #8266 and sits at an elevation of 768.5 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of I90 139.34 — NGS OS0621 — Jackson County, US?

The position of I90 139.34 — NGS OS0621 — Jackson County, US in WGS84 is 43.835556°, -101.740000° (decimal), or 43° 50′ 8.00″ N, 101° 44′ 24.00″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 14N (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.