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Oregon's Forest Atlas 2010 online edition
Forest History: Oregon's North Pacific Coast 1850 to 1940
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Forest History: Oregon's North Pacific Coast 1850 to 1940
A series of four maps (1850, 1890, 1920, and 1940) shows the state of forests in the northern coastal area of Oregon. They show the change in stand age over time primarily due to fire.  Forested systems historically experienced large fluctuations in age and this most certainly will continue into the future.
Pre-European settlement Native American inhabitants annually set fire to meadows and forests, opening and shaping the landscapes of the Willamette, Umpqua, and Rogue River valleys. Burning stimulated browse for deer, assisted in the harvest of tubers and seeds, stimulated the regeneration of berries, and maintained an open understory.
Source:  U.S. Department of the Interior, Bureau of Land Management, Oregon/Washington State Office 
PowerPoint presentation - ( 4 Mb file)
Data description for this map 

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