STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US

USNGStrigunknown#488
Latitude
21.365970°
Longitude
-158.060714°
Ortho h
71.00 m
Verifications
0
Last checked
Never
This triangulation (trig) station is part of the NGS horizontal control network, which establishes the geodetic framework for surveying and mapping across the United States. Located near Kapolei on the island of Oahu, Hawaii, at coordinates 21.36597°N, 158.06071°W, this benchmark serves as a reference point for local surveys and spatial positioning work throughout the Hawaiian Islands. Trig stations of this type were historically established to provide precise horizontal control via triangulation methods. Modern surveying professionals rely on such monumented points to verify equipment calibration, validate survey measurements, and establish datum connections across project areas. Documentation and periodic verification of these control points remain essential for maintaining the integrity of Hawaii's geodetic infrastructure and ensuring consistency across surveying activities in the region.

Verify this point

Sign in to submit a verification from the field.

Verification history (0)

No verifications yet. Be the first to check this point!
🛰️ Satellite view
ESRI World Imagery · zoom 16 (~1 m/px)
Open in Google Earth →
Satellite imagery of STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US, USSatellite imagery of STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US, USSatellite imagery of STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US, USSatellite imagery of STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US, USSatellite imagery of STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US, USSatellite imagery of STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US, USSatellite imagery of STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US, USSatellite imagery of STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US, USSatellite imagery of STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US, US
🗺️ Google Maps🚗 Street View🅱️ Bing Maps🌐 OpenStreetMap
Imagery © Esri · Earthstar Geographics · USGS · NASA · All providers credited

STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #488 on SurveyingPedia and sits at an approximate elevation of 71.0 metres. Its coordinates in WGS84 are 21.365970°, -158.060714°, corresponding to 21° 21′ 57.49″ N, 158° 3′ 38.57″ 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 STATE SURVEY 9 6 1969 — NGS TU1659 — 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)21.365970, -158.060714
WGS84 (DMS)21° 21′ 57.49″ N, 158° 3′ 38.57″ W
UTM zone (approx.)Zone 4N (approx.)
Elevation71.00 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
NS 4 — NGS DR2311 — Kapolei, US
0.7 km away · US
US NGS · triangulation station
HCTC 6 — NGS DR2084 — Kapolei, US
0.7 km away · US
US NGS · triangulation station
NS 5 — NGS DR2312 — Kapolei, US
0.9 km away · US
US NGS · triangulation station
SOH 20 — NGS DR2083 — Kapolei, US
1.6 km away · US
US NGS · triangulation station
NS 3 — NGS DR2310 — Kapolei, US
1.6 km away · US
US NGS · triangulation station
MAKAKILO — NGS TU1664 — Kapolei, US
1.7 km away · US

Frequently asked questions

What is STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US?

STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #488 and sits at an elevation of 71.0 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US?

The position of STATE SURVEY 9 6 1969 — NGS TU1659 — Kapolei, US in WGS84 is 21.365970°, -158.060714° (decimal), or 21° 21′ 57.49″ N, 158° 3′ 38.57″ 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.