Terrain · Click a point
Find the ground elevation at any point in Oregon
Get the elevation at a point in Oregon: click the map and the tool returns the ground elevation in feet, interpolated from the USGS 3DEP lidar elevation model.
A quick spot elevation for a floor level, a water tank, a pump or a survey check, and the difference between two places.
Free to run · pay to download
Free to run, and free to save as a PNG image of the map. This tool has no file export of its own. For the terrain as a file, Download Data exports contours, a GeoTIFF or a 3D mesh with a pass: US$29 for 24 hours, US$99 for 30 days or US$399 for 12 months.
Who uses this
- Owners and plumbers. Work out the fall from a tank or a well to the house.
- Surveyors. Sanity-check an elevation against the USGS model.
When to use it
- You need a spot elevation for a floor level, a water tank, a pump or a survey check.
- You want to confirm the elevation difference between two places quickly.
Tools for your job
Add Elevation is one step in a bigger question. These are the jobs it helps with, and the tools that go with it.
For the job: Plans, CAD, GIS and 3D printing
I need the terrain as a file.
- 1.Download Data — Contours, a GeoTIFF elevation model, a georeferenced aerial photo or a 3D mesh for printing.
- 2.Contour Lines — Contours previewed on the map before you export them.
- 3.Elevate a File — Adds ground elevation to your own GPX, KML, GeoJSON or CSV points.
- 4.Add Elevation (this tool) — A single spot elevation, for a floor level or a tank.
- 5.Terrain Stats — The highest, lowest and mean ground elevation of an area, and how the land is spread between them.
How to use it
- Open Add Elevation and click the map. The elevation appears in the panel and as a marker.
- Click again for another point. Use Elevation Profile for a whole line.
Step by step: Mount Hood
We read a spot elevation on Mount Hood’s south side.
1.Open Add Elevation and click anywhere.
2.The panel shows the ground elevation in feet above NAVD 88 at the point, and the resolution it was read at. Click again to read another point.
What it showed
- For a line of elevations, use Elevation Profile; for a whole file of points, use Elevate a File.
How it works
The USGS 3DEP bare-earth model is sampled at the clicked coordinate, interpolating between the four nearest cells so the value is not snapped to a grid.
Reading the results
Feet above NAVD 88, which is close to mean sea level. Compare with a survey benchmark before using it for design elevations.
Limits and caveats
- Where lidar has not been flown, the USGS 3DEP model falls back to its 1/3 arc-second layer, about 33 ft per pixel, and downloads state what share of the area came from it. That coarser model is not fit for site-scale decisions. DOGAMI reports about 99% of Oregon covered by at least one lidar project. The fallback is rare.
- Bare ground only. On a deck or a roof the value is the ground beneath it.
Data and attribution
Results come from the USGS 3D Elevation Program (3DEP) bare-earth elevation model: lidar at 3.3 ft per pixel where it has been flown, and the 1/3 arc-second model, about 33 ft per pixel, elsewhere, with elevations above NAVD 88. The tools with a surface option (Sunlight, Viewshed, Sightline, Object Heights) read DOGAMI’s statewide digital surface model of trees and buildings.
USGS 3DEP elevation data and USGS maps are U.S. Government works in the public domain: you may use the results, including commercially. A credit to the USGS 3D Elevation Program is appreciated, and every file you download carries it. DOGAMI lidar products are published by the State of Oregon; credit "DOGAMI / Oregon Lidar Consortium". County taxlot boundaries are the assessor's GIS data, not surveys, and each county publishes its own disclaimer, shown with the parcel. The aerial basemap is from Esri and follows Esri's terms; it is not included in downloads.
Questions
Is this elevation above sea level?
It is feet above NAVD 88, the national vertical datum, which is close to mean sea level. Compare with a benchmark before using it for design elevations.
Ready to try it?
Open Add Elevation on the map →Free to use, no account. The analysis runs in your browser on public-domain USGS 3DEP data. Downloading the results needs a pass: see pricing.