SCHOFIELD EAST BASE RM 1 — NGS TU0651 — Waipahu, US

USNGStrigunknown#523
Latitude
21.480303°
Longitude
-158.025633°
Ortho h
255.34 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's foundational control network, which establishes the geometric framework for surveying and mapping throughout the United States. Located in the Waipahu area of Oahu, Hawaii, this trig point serves as a reference station for horizontal position control at coordinates 21.48030°N, 158.02563°W. Triangulation stations of this type were historically established to create intervisible networks across regions, enabling surveyors to measure distances and angles with high precision. Modern surveyors and geodetic professionals rely on documented control points for validating survey work, establishing baselines for construction projects, and maintaining spatial data consistency. Verification and documentation of such benchmarks remain valuable for confirming historical survey work and supporting contemporary surveying operations across Hawaii.

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SCHOFIELD EAST BASE RM 1 — NGS TU0651 — Waipahu, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #523 on SurveyingPedia and sits at an approximate elevation of 255.3 metres. Its coordinates in WGS84 are 21.480303°, -158.025633°, corresponding to 21° 28′ 49.09″ N, 158° 1′ 32.28″ 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 SCHOFIELD EAST BASE RM 1 — NGS TU0651 — Waipahu, 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)21.480303, -158.025633
WGS84 (DMS)21° 28′ 49.09″ N, 158° 1′ 32.28″ W
UTM zone (approx.)Zone 4N (approx.)
Elevation255.34 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
SCHOFIELD EAST BASE — NGS TU0652 — Waipahu, US
0.0 km away · US
US NGS · triangulation station
SCHOFIELD MAGNETIC — NGS TU0654 — Waipahu, US
0.0 km away · US
US NGS · triangulation station
SOH 56 — NGS DR2119 — Waipahu, US
0.1 km away · US
US NGS · triangulation station
7 1 — NGS TU0655 — Waipahu, US
0.8 km away · US
US NGS · triangulation station
WHEELER AFB AFCS REC FAC TOWER — NGS TU1621 — Waipahu, US
1.0 km away · US
US NGS · triangulation station
SOH 53 — NGS DR2116 — Waipahu, US
1.0 km away · US

Frequently asked questions

What is SCHOFIELD EAST BASE RM 1 — NGS TU0651 — Waipahu, US?

SCHOFIELD EAST BASE RM 1 — NGS TU0651 — Waipahu, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #523 and sits at an elevation of 255.3 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of SCHOFIELD EAST BASE RM 1 — NGS TU0651 — Waipahu, US?

The position of SCHOFIELD EAST BASE RM 1 — NGS TU0651 — Waipahu, US in WGS84 is 21.480303°, -158.025633° (decimal), or 21° 28′ 49.09″ N, 158° 1′ 32.28″ 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.