HP 1 — NGS RD0472 — Portland, US

USNGStrigunknown#5570
Latitude
45.527500°
Longitude
-122.672778°
Ortho h
10.23 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network, which establishes the fundamental control framework for surveying and mapping throughout the United States. Located near Portland, Oregon at coordinates 45.52750°, -122.67278°, this trig point serves as a reference monument for horizontal positioning in the Pacific Northwest region. Triangulation stations of this type historically provided precise horizontal control for large-scale surveys and mapping projects. The point's documented location enables surveyors and engineers to reference local work to the national geodetic datum, ensuring consistency across jurisdictional boundaries and supporting infrastructure development. Verification and documentation of such benchmarks remains valuable for professional surveyors conducting boundary work, engineering projects, and spatial data validation. Maintaining current records of these control points supports the integrity of the surveying profession and enables accurate connection of contemporary survey networks to established geodetic infrastructure.

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HP 1 — NGS RD0472 — Portland, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #5570 on SurveyingPedia and sits at an approximate elevation of 10.2 metres. Its coordinates in WGS84 are 45.527500°, -122.672778°, corresponding to 45° 31′ 39.00″ N, 122° 40′ 22.00″ 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 HP 1 — NGS RD0472 — Portland, 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)45.527500, -122.672778
WGS84 (DMS)45° 31′ 39.00″ N, 122° 40′ 22.00″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation10.23 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
31 — NGS RD0468 — Portland, US
0.0 km away · US
US NGS · triangulation station
HLM 27 — NGS RD3198 — Portland, US
0.1 km away · US
US NGS · triangulation station
1437 — NGS RD0469 — Portland, US
0.1 km away · US
US NGS · triangulation station
PORTLAND UNION PAC RR CO TANK — NGS RD3243
0.2 km away · US
US NGS · triangulation station
HLM 26 — NGS RD3108 — Portland, US
0.2 km away · US
US NGS · triangulation station
Q 14 — NGS RD0473 — Portland, US
0.3 km away · US

Frequently asked questions

What is HP 1 — NGS RD0472 — Portland, US?

HP 1 — NGS RD0472 — Portland, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #5570 and sits at an elevation of 10.2 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of HP 1 — NGS RD0472 — Portland, US?

The position of HP 1 — NGS RD0472 — Portland, US in WGS84 is 45.527500°, -122.672778° (decimal), or 45° 31′ 39.00″ N, 122° 40′ 22.00″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 10N (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.