HLM 34 — NGS RD2985 — Portland, US

USNGStrigunknown#5710
Latitude
45.541377°
Longitude
-122.690890°
Ortho h
9.00 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network of control points that form the foundational framework for surveying and mapping throughout the United States. Located near Portland, Oregon at coordinates 45.54138°, -122.69089°, this trig point serves as a precisely positioned reference for establishing accurate horizontal control in the region. Triangulation stations of this type are monumented points used to support land surveys, engineering projects, and cartographic work. The NGS network integrates such monuments into a coherent geodetic system, enabling surveyors and mappers to tie their work to a common, standardized reference frame. Verification and documentation of benchmark locations remain important for maintaining the integrity of the surveying infrastructure. Even when elevation data is absent from historical records, the horizontal coordinates provide essential reference value for professional surveying activities in the Portland area and surrounding regions.

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HLM 34 — NGS RD2985 — Portland, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #5710 on SurveyingPedia and sits at an approximate elevation of 9.0 metres. Its coordinates in WGS84 are 45.541377°, -122.690890°, corresponding to 45° 32′ 28.96″ N, 122° 41′ 27.20″ 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 HLM 34 — NGS RD2985 — 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)45.541377, -122.690890
WGS84 (DMS)45° 32′ 28.96″ N, 122° 41′ 27.20″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation9.00 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
PORTLAND QUAKER CAL ES LINE TK — NGS RD2980
0.3 km away · US
US NGS · triangulation station
1438 — NGS RD0480 — Portland, US
0.3 km away · US
US NGS · triangulation station
A 104 — NGS RD0481 — Portland, US
0.3 km away · US
US NGS · triangulation station
51 — NGS RD0483 — Portland, US
0.4 km away · US
US NGS · triangulation station
WIS — NGS RD0482 — Portland, US
0.5 km away · US
US NGS · triangulation station
UP — NGS RD2971 — Portland, US
0.6 km away · US

Frequently asked questions

What is HLM 34 — NGS RD2985 — Portland, US?

HLM 34 — NGS RD2985 — Portland, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #5710 and sits at an elevation of 9.0 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of HLM 34 — NGS RD2985 — Portland, US?

The position of HLM 34 — NGS RD2985 — Portland, US in WGS84 is 45.541377°, -122.690890° (decimal), or 45° 32′ 28.96″ N, 122° 41′ 27.20″ 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.