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Oregon's Forest Atlas 2010 online edition
Oregon Forestland Vegetation Classes
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Forest vegetation classes combine information about tree species, tree sizes, and canopy closure. The composition, diversity, and structure of vascular plants are important factors in assessing biological diversity, resiliency, and economic value of forested ecosystems.
Vegetation is the source of primary production and a primary determinant of habitat for many species. Changes in these factors due to non-native species, climate change, forestland conversion, and land management are concerns at multiple spatial scales. The composition and structure of plants can serve as indicators of changes to ecosystems and as indicators of the status of other organisms and ecosystem processes that are difficult to measure directly.
For more information on how major forest cover types are currently allocated to land management categories refer to Oregon Indicator of Sustainable Forest Management: Extent of area by forest cover type in protected area categories

Map for download and viewing
Map showing general vegetation categories for the state of Oregon
This map displays the general vegetation classifications for Oregon.
JPG version of the map - ( 2.9 Mb file)
Source: Gradient Nearest Neighbor data, U.S. Forest Service PNW Research Station, Corvallis.
Data description for this map 

Detail zoom-in - Three Sisters region of Oregon Cascades
Map showing detail zoom area of the Three Sisters region in central Oregon
A 'map zoom' provides additional detail of land data for the Three Sisters area of the Cascade Mountain range.

Map of the zoom area
JPG version of the map - ( 4 Mb file)

Important information about Forest Atlas map products
Data for the Forest Atlas was compiled by staff with the Oregon Department of Forestry in 2010 using data generated by the U.S. Forest Service PNW Research Station in Corvallis, Oregon State University and the Oregon Department of Forestry.
This product is for informational purposes, and may not be suitable for legal, engineering or surveying purposes. This information or data is provided with the understanding that conclusions drawn from such information are the responsibility of the user.

Data contained within the map products does not necessarily reflect conditions at a fine-detail level.  Some data models rely on site information at least one year old. All information published herein is gathered from sources which are thought to be reliable, but the reader should not assume that the information is official or final, especially for the purposes of land use determination. The Oregon Department of Forestry does not assume responsibility for errors, and all research information contained within the website is subject to change without notice.
Additional information is contained in the liability notice 

Oregon's Forest Atlas main page 
2010 Forest Assessment and Resource Strategy project information
Additional questions regarding the Forest Atlas can be addressed to the ODF Agency Affairs Office