9 1 — NGS TU0618 — Kapolei, US

USNGStrigunknown#485
Latitude
21.360903°
Longitude
-158.131609°
Ortho h
9.02 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network of control points that establish the geometric framework for surveying, mapping, and engineering projects across the United States. Located near Kapolei on the island of Oahu, Hawaii, at coordinates 21.36090° N, 158.13161° W, this trig point serves as a precisely positioned reference for local geodetic work. Triangulation stations of this type provide fundamental horizontal control by establishing fixed, surveyed locations that surveying professionals can occupy and reference for subsequent measurements. The NGS network remains essential infrastructure for accurate spatial referencing throughout the nation and its territories. Documentation and verification of such benchmarks ensures their continued utility for surveyors, engineers, and cartographers. Field confirmation of marker condition and accessibility supports the reliability of this geodetic control network for current and future projects in the Hawaiian Islands.

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9 1 — NGS TU0618 — Kapolei, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #485 on SurveyingPedia and sits at an approximate elevation of 9.0 metres. Its coordinates in WGS84 are 21.360903°, -158.131609°, corresponding to 21° 21′ 39.25″ N, 158° 7′ 53.79″ 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 9 1 — NGS TU0618 — Kapolei, 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)21.360903, -158.131609
WGS84 (DMS)21° 21′ 39.25″ N, 158° 7′ 53.79″ W
UTM zone (approx.)Zone 4N (approx.)
Elevation9.02 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
C 14 — NGS TU0619 — Kapolei, US
0.3 km away · US
US NGS · triangulation station
STATE SURVEY 8 9B HILL REF 2 — NGS TU1682 — Kapolei, US
0.8 km away · US
GeoNames topographic database · cape
Kahe Point
1.0 km away · US
US NGS · triangulation station
B 14 — NGS TU0616 — Kapolei, US
1.0 km away · US
US NGS · triangulation station
STATE SURVEY 8 9A HARRIET — NGS TU1683 — Kapolei, US
1.1 km away · US
US NGS · triangulation station
KAHE RESET — NGS TU1681 — Kapolei, US
1.1 km away · US

Frequently asked questions

What is 9 1 — NGS TU0618 — Kapolei, US?

9 1 — NGS TU0618 — Kapolei, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #485 and sits at an elevation of 9.0 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of 9 1 — NGS TU0618 — Kapolei, US?

The position of 9 1 — NGS TU0618 — Kapolei, US in WGS84 is 21.360903°, -158.131609° (decimal), or 21° 21′ 39.25″ N, 158° 7′ 53.79″ 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.