With hundreds of map layers available to draw from, you can use the Oregon Explorer Map Viewer to make your own custom map and share it with others. If you need guidance, watch tutorials on how to use the Oregon Explorer Map Viewer.
Starting the Oregon Gap Analysis Project, the Oregon Biodiversity Information Center has been developing and maintaining a GIS coverage showing the distribution of Protected Areas in Oregon for many years. USGS GAP status is used to easily classify managed areas as being protected primarily for biodiversity verus lands without biodiversity protections (GAP status of 1 being most protected, 4 being not protected). Several other designations and descriptions are included in the datasets, covering federal, state, local, and private managed lands as available. The stewardship coverage is continually updated as new areas are protected or designated, or as land ownership patterns change.
Three Oregon managed area datasets are available from ORBIC:
Several other public land coverages are available at the Oregon DAS GEO Spatial Data Library.
The Integrated Landscape Assessment Project for Oregon, Washington, Arizona, and New Mexico produced many vegetation maps and datasets for Oregon, including existing vegetation and forest structure as well as predicted vegetation based on various management and climate states.
NW ReGAP Ecological Systems Map of Oregon
In the 2000s ORBIC received funding from 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.
Creating Historical Vegetation Maps
Land managers and researchers often want to know what a landscape looked like years ago, to compare how the ecology has changed, assess the rate of change, and make decisions about how to manage the area for the future.
ORBIC and its partners have created datasets of historical vegetation at both fine and coarse scales, using several different data sources. Read more and view coverages by clicking below or on the menu links at left.
Historical vegetation based on General Land Office (GLO) and U.S. Coast Survey (Scale: 1:24,000). GLO data integrated with U.S. Coast Survey topographic maps ("T-Sheets") where available.
Oregon statewide composite historical vegetation (Scale: 1:100,000). A synthesis of data from several sources, including GLO coverage where available.
Historical vegetation maps available for download include:
In conjunction with NatureServe, INR is making updated remote sensing-based vegetation maps for the major national parks in the Pacific Northwest. Detecting climate change impacts on the distribution of vegetation requires an accurate map of baseline conditions made using a repeatable methodology. The National Park Service Inventory & Monitoring Program has embarked on a major vegetation mapping project for Mount Rainier, Olympic, North Cascades, and Lewis and Clark National Parks.
The new vegetation maps will use the recently revised National Vegetation Classification System. They will be targeted to the Alliance level, roughly equivalent to dominant canopy species with some major types further differentiated by temperature or moisture modifiers. Multitemporal Landsat TM imagery, supple-mented by color-infrared aerial photography, LiDAR elevation and vegetation height data where available, and extensive field training data collection, will form the basis of the mapping, which will be performed using Random Forests data mining techniques. The new maps will provide a baseline against which to measure vegetation change and will also provide useful inputs for studies of the impacts of climate change on a variety of vegetation processes, including carbon dynamics and disturbance.
Final products will be available from the National Park Service website at their Natural Resource Reports page.
This map highlights water pollution issues in the Willamette River system. It was produced by the Corvallis Environmental Center and the Institute for Water and Watersheds and published in August of 2008. It updates and expands on the Willamette Water Quality Map compiled by the Corvallis Environmental Center in 1997.