KEAAU 2 — NGS TU1718

USNGStrigunknown#371
Latitude
21.490176°
Longitude
-158.208163°
Ortho h
690.90 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey network, which maintains the fundamental control framework for surveying and mapping throughout the United States. Trig stations serve as precisely positioned reference points established through classical triangulation methods to support terrestrial surveys, engineering projects, and geographic information systems. Located at 21.49018°N, 158.20816°W, this point falls within the Hawaiian archipelago region. Triangulation stations of this type typically mark elevated or strategically visible locations chosen for optimal sightline geometry during network establishment. Recovery and verification of such benchmark monuments remains important for modern surveying operations. Documentation of coordinates, physical condition, and accessibility assists practitioners in applying historical control networks to contemporary projects. Accurate positional data for these reference points supports continuity in geodetic infrastructure across generations of surveying practice.

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KEAAU 2 — NGS TU1718 is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #371 on SurveyingPedia and sits at an approximate elevation of 690.9 metres. Its coordinates in WGS84 are 21.490176°, -158.208163°, corresponding to 21° 29′ 24.63″ N, 158° 12′ 29.39″ 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 KEAAU 2 — NGS TU1718 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)21.490176, -158.208163
WGS84 (DMS)21° 29′ 24.63″ N, 158° 12′ 29.39″ W
UTM zone (approx.)Zone 4N (approx.)
Elevation690.90 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
KEAAU 1875 — NGS TU1717
0.0 km away · US
US NGS · triangulation station
BURNS — NGS TU1701
0.6 km away · US
US NGS · triangulation station
KEPUHI NEW — NGS TU1702
1.7 km away · US
US NGS · triangulation station
SOH 06 — NGS DR2066
1.9 km away · US
US NGS · triangulation station
MAKAHA — NGS TU1698
1.9 km away · US
US NGS · triangulation station
ESHLEMAN — NGS TU1697
1.9 km away · US

Frequently asked questions

What is KEAAU 2 — NGS TU1718?

KEAAU 2 — NGS TU1718 is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #371 and sits at an elevation of 690.9 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of KEAAU 2 — NGS TU1718?

The position of KEAAU 2 — NGS TU1718 in WGS84 is 21.490176°, -158.208163° (decimal), or 21° 29′ 24.63″ N, 158° 12′ 29.39″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 4N (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.