PDXA BASE ARP — NGS DR5459 — Portland, US

USNGStrigunknown#5119
Latitude
45.596869°
Longitude
-122.609216°
Ellipsoidal h
-4.64 m
Verifications
0
Last checked
Never
This trigonometric station is part of the National Geodetic Survey's network, which establishes and maintains the fundamental control framework for surveying and mapping throughout the United States. Trigonometric stations serve as primary reference points for horizontal control, enabling precise positioning for cadastral surveys, engineering projects, and geographic data collection. Located near Portland, Oregon, at coordinates 45.59687° N, 122.60922° W, this point is situated at an ellipsoidal elevation of -4.6 meters, indicating a position below the reference ellipsoid. The mark contributes to the regional control network spanning the Pacific Northwest. Documentation and verification of such geodetic monuments remain essential for maintaining survey accuracy and data continuity. Regular inspection and re-observation of benchmark stations ensure the integrity of the nation's spatial reference infrastructure and support professional surveying activities across diverse applications.

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PDXA BASE ARP — NGS DR5459 — Portland, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #5119 on SurveyingPedia and sits at an approximate elevation of -4.6 metres. Its coordinates in WGS84 are 45.596869°, -122.609216°, corresponding to 45° 35′ 48.73″ N, 122° 36′ 33.18″ 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 PDXA BASE ARP — NGS DR5459 — 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)45.596869, -122.609216
WGS84 (DMS)45° 35′ 48.73″ N, 122° 36′ 33.18″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation-4.64 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
U 484 — NGS RD0362 — Portland, US
0.2 km away · US
US NGS · triangulation station
T 484 — NGS RD0361 — Portland, US
0.4 km away · US
US NGS · triangulation station
PORTLAND COLUMBIA APT BEACON — NGS RD2824
0.4 km away · US
US NGS · triangulation station
PDX G — NGS AC7362 — Portland, US
0.6 km away · US
US NGS · triangulation station
RAMP — NGS RD2930 — Portland, US
0.8 km away · US
US NGS · triangulation station
NORTH PORTLAND DIKE LITE — NGS RD4172
0.8 km away · US

Frequently asked questions

What is PDXA BASE ARP — NGS DR5459 — Portland, US?

PDXA BASE ARP — NGS DR5459 — Portland, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #5119 and sits at an elevation of -4.6 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of PDXA BASE ARP — NGS DR5459 — Portland, US?

The position of PDXA BASE ARP — NGS DR5459 — Portland, US in WGS84 is 45.596869°, -122.609216° (decimal), or 45° 35′ 48.73″ N, 122° 36′ 33.18″ 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.