Oregon Geospatial Enterprise Office

​Oregon Imagery Explorer​

Orthoimagery is available for download and viewing via the Oregon Imagery Explorer.​

​Oregon ortho imagery partners

​The Oregon Geographic Information Council (OGIC) and partners listed below signed a MOU to procure Digital Orthoimagery for Oregon.  Other partners in this consortium are:

  • USDA Farm Services Agency
  • USDA Natural Resources Conservation Service
  • USDA Forest Service
  • US DOI Geological Survey
  • US DOI Fish and Wildlife Service
  • US DOI Bureau of Land Management​
  • Oregon Watershed Enhancement Board
  • Oregon Military Department 
  • Oregon Department of Transportation ​
  • ​Oregon Counties
  • Oregon Irrigation Districts Association
  • Bonneville Power Administration
  • Avista

​Downloading digital ortho quads (FTP)

The DOQ links below download compressed orthos in Oregon Lambert from an http site. Most software programs need the .sdw file to geo-reference the .sid file. The .txt files show the compression statistics for each image. 

2000 DOQ FTP files in SID format 

1995 DOQ FTP​ files in SID format.  Latest files loaded on May 2, 2002. 


Tile and Block numbers uniquely identify each quad in the United States. To look up the Ohiocode for a specific quad name, see: Ohiocode Quad Names (doc) 

Oregon 1 degree tiles​

Oregon 1 Degree Tiles Reference Image 
 

Letter code index

Ortho Letter Code Index Reference 
 

​Oregon 100k quad names

Ortho 100k Quad Name Reference Image 
 

​GIS approved tile numbering

GPL Approved tile Numbering Reference Image 
 

GPL tile numbering 9x format

GPL Tile Numbering 9x Format Reference Image 
 

​Processing DOQ's

DAS, ODF & WRD Process for 1995 DOQs 
(AMLs used are referenced in square brackets)   PDF Format Diagram of process (pdf)​

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