UPOLU POINT 1 CORS ARP — NGS AF9552 — Hawaiʻi County, US

USNGStrigunknown#2415
Latitude
20.245880°
Longitude
-155.883793°
Ellipsoidal h
77.97 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network, which establishes and maintains the fundamental geodetic control infrastructure for the United States. Trig stations such as this serve as monumented reference points for precise horizontal and vertical positioning across broad geographic areas. Located in Hawaiʻi County, Hawaii, at coordinates 20.24588°N, 155.88379°W with an ellipsoidal elevation of 78.0 meters, this benchmark contributes to the NGS framework that supports surveying, mapping, and engineering projects throughout the region. These control points enable surveyors and geodesists to tie local measurements to the national coordinate system with high accuracy. Verification and documentation of such monuments remain important to the surveying profession, as they provide stable, reproducible reference locations. Proper maintenance and recovery of these points ensures their continued utility for spatial data collection and infrastructure development.

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UPOLU POINT 1 CORS ARP — NGS AF9552 — Hawaiʻi County, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #2415 on SurveyingPedia and sits at an approximate elevation of 78.0 metres. Its coordinates in WGS84 are 20.245880°, -155.883793°, corresponding to 20° 14′ 45.17″ N, 155° 53′ 1.65″ 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 UPOLU POINT 1 CORS ARP — NGS AF9552 — Hawaiʻi 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)20.245880, -155.883793
WGS84 (DMS)20° 14′ 45.17″ N, 155° 53′ 1.65″ W
UTM zone (approx.)Zone 5N (approx.)
Elevation77.97 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
UPOL USCG B — NGS AB7168 — Hawaiʻi County, US
0.0 km away · US
US NGS · triangulation station
UPOLU POINT 6 CORS ARP — NGS DK2664 — Hawaiʻi County, US
0.0 km away · US
US NGS · triangulation station
LORAN C TOWER — NGS TU2761 — Hawaiʻi County, US
0.2 km away · US
US NGS · triangulation station
LORAN A TOWER — NGS TU2764 — Hawaiʻi County, US
0.7 km away · US
US NGS · triangulation station
KEHONI RESET — NGS TU2715 — Hawaiʻi County, US
1.9 km away · US
US NGS · triangulation station
MAHU — NGS TU2740 — Hawaiʻi County, US
2.3 km away · US

Frequently asked questions

What is UPOLU POINT 1 CORS ARP — NGS AF9552 — Hawaiʻi County, US?

UPOLU POINT 1 CORS ARP — NGS AF9552 — Hawaiʻi County, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #2415 and sits at an elevation of 78.0 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of UPOLU POINT 1 CORS ARP — NGS AF9552 — Hawaiʻi County, US?

The position of UPOLU POINT 1 CORS ARP — NGS AF9552 — Hawaiʻi County, US in WGS84 is 20.245880°, -155.883793° (decimal), or 20° 14′ 45.17″ N, 155° 53′ 1.65″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 5N (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.