| Project Location Guidance |
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| Coordinate Formats |
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When submitting a map to OWEB for a grant application, it is important that the coordinate you supply is in a readable format. Many formats exist because of the use of different projections in geographic information systems (GIS). A projection is the transformation of a three-dimensional space (Earth) onto a two-dimensional map. The State of Oregon has defined Oregon Lambert as the standard projection for government use.
Please provide your project area coordinate information in a readable format using the options listed below. It is not important to identify the projection used to create the map.
Coordinate Formats:
Feet (if using the Oregon Lambert projection, the coordinate will be in feet)
e.g. 1,952,416.309, 1,254,867.242
Decimal Degrees
e.g. -123.416, 45.216
Degree Minute Seconds (if using the Oregon Explorer Advanced Mapping Tool, the coordinate will be in degree minutes seconds)
e.g. -118° 11’37.079”W, 45° 5’39.728”N
Degree Decimal Minutes
e.g. -118 10.557, 45 4.454
UTM/MGRS – Universal Transverse Mercator/Military Grid Reference System
e.g. 18T 0439535 5024750
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| Obtaining the 10-digit HUC |
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Watersheds are delineated by the U.S. Geological Survey using a nationwide system based on surface hydrologic features. The 10-digit HUC (hydrologic unit code) level identifies watershed units at the 5th field.
Download a PDF of these instructions.
Oregon Explorer – Advanced Mapping Tool
1. Go to http://oregonexplorer.info/
2. Click on Maps in the left hand column
3. Select the advanced mapping tool link
4. Turn on the 5th Field HUC layer.
- Water and Air folder
- Watersheds and Hydrologic Units subfolder
- Check the box next to Watersheds – 5th field
5. Click the Identify tool  found at the top of the page
- Click on your watershed boundary (in blue). The detailed information about the watershed will be displayed in the left hand column.
6. Record the 10-digit HUC number in Section I of your grant application.
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| Creating a Map |
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A project location map is required with your grant application. In an attempt to standardize the map products received for projects, OWEB suggests using a specific online tool for creating a map. The Oregon Explorer Advanced Mapping tool offers user friendly capabilities to create a printable PDF map. Click on the following link to download step-by-step instructions for using the tool.
Oregon Explorer Advanced Mapping Tool Instructions (PDF)
Oregon Explorer Maps Web page
Example map created using Oregon Explorer:
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| Questions? |
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For questions or guidance on submitting project location information or a map for grant applications, please contact Ashley Seim, (503) 986-0186.
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