EPSG:6808 · United States
NAD83(CORS96) / Oregon Columbia River West zone (m) to KML & KMZ
NAD83(CORS96) / Oregon Columbia River West zone (m) (EPSG:6808) is a omerc coordinate system on the NAD83(CORS96) datum, with coordinates in metres. Its official area of use is: United States (USA) - Oregon - Columbia River area west of approximately 121°30'W.
- Converter already set to EPSG:6808
- Latitude and longitude on WGS 84, as Google Earth uses
- Download the point as KML
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Good to know
- Datum: Treated as WGS 84, no shift (the datums agree to about a metre or better).
Convert a whole spreadsheet
- Open the web app or the Windows app, and paste your rows from Excel or open a CSV file.
- Under Coordinate system, search for “6808” and pick NAD83(CORS96) / Oregon Columbia River West zone (m).
- Check one point you know on the map, then press Save KML or Save KMZ and open it in Google Earth.
Check points for EPSG:6808
Five points inside the area of use of NAD83(CORS96) / Oregon Columbia River West zone (m), with their latitude and longitude on WGS 84 and their easting and northing in this grid (metres). Enter an easting and northing in the converter above: you should get the latitude and longitude shown, to a few centimetres.
| Point | Latitude | Longitude | Easting | Northing |
|---|---|---|---|---|
| Middle of the area of use | 45.86500° N | 122.90000° W | 176,065.57 | 179,935.99 |
| Towards the north-west | 46.28200° N | 123.75800° W | 109,882.56 | 226,559.79 |
| Towards the north-east | 46.28200° N | 122.04200° W | 242,133.05 | 226,725.88 |
| Towards the south-west | 45.44800° N | 123.75800° W | 109,000.58 | 133,864.30 |
| Towards the south-east | 45.44800° N | 122.04200° W | 243,244.14 | 134,033.07 |
Common mistakes with NAD83(CORS96) / Oregon Columbia River West zone (m)
- Easting and northing swapped. In NAD83(CORS96) / Oregon Columbia River West zone (m) the middle of the grid is near easting 176,065.57 and northing 179,935.99. If your easting column holds numbers like 179,935.99, the columns are the wrong way round and every point lands far away: swap them before converting.
- Feet entered as metres. NAD83(CORS96) / Oregon Columbia River West zone (m) is in metres. Coordinates copied from a drawing in feet must be converted first, or every point moves outwards from the grid's origin.
- Forgetting the datum. NAD83(CORS96) / Oregon Columbia River West zone (m) is not on WGS 84: treated as WGS 84, no shift (the datums agree to about a metre or better). Picking a WGS 84 grid with the same projection instead leaves the points off by that amount.
- Points outside the grid's area. NAD83(CORS96) / Oregon Columbia River West zone (m) is meant for United States (USA) - Oregon - Columbia River area west of approximately 121°30'W. Points well outside that area convert with growing error; the converter flags them so you can choose the right grid.
- A local site grid. If every point is off by the same distance and direction, the drawing may be on a local site grid. Calibrate on three or more known control points instead.
New to this? Read how to convert easting and northing to latitude and longitude.