Oregon Ecological Systems Thumbnail

The Institute for Natural Resources has long been involved in mapping and modeling Oregon's vegetation and habitats. The following resources map existing vegetation at the time of their production (check the descriptions for the year).

Integrated Landscape Assessment Project


The ILAP project produced a multitude of habitat and forest structure maps across Oregon. Washington, Arizona, and New Mexico. You can find these vegetation map prodcuts from the Western Landscape Explorer data page.

NW ReGAP Ecological Systems Map of Oregon

In the 2000s INR's Oregon Biodiversity Information Center (ORBIC) received funding from the Oregon Watershed Enhancement Board (OWEB) to integrate all available 1:24,000 vegetation maps and coverages. Previously, the only statewide vegetation or land coverages available for Oregon had been the two OR-GAP coverages described below. ORBIC and OR-GAP has worked hard to link all existing vegetation coverages to the National Vegetation Classification System. The newest version of the map, a grid of ecological systems throughout Oregon, was created in 2010 and is available from the Oregon DAS GEO Spatial Data Library. It is posted under the Bioscience Oregon Framework category.

Previous OR-GAP Existing Vegetation and Land-Use Coverages

Two statewide vegetation and land cover GIS maps were created as part of OR-GAP in Oregon. The first was produced in 1992 by Jimmy Kagan and Steve Caicco. This map was done using available data, with polygons hand drawn and digitized on 1:250,000 satellite images. This existing vegetation cover and the associated vegetation manual are available from the Oregon Geospatial Office.

The second OR-GAP coverage is the 1998 Statewide Existing Vegetation and Landcover map. For this, OR-GAP contracted Chris Kiilsgaard of the Oregon Department of Fish and Wildlife. This map was completed using 30 meter TM imagery and was used in the analysis for the final OR-GAP report. The vegetation types have also been crosswalked to wildlife habitats.