Metro Data Resource CenterThis polygon coverage depicts historical vegetation in the Willamette Valley, Oregon, including portions of Clark County, Washington along the Columbia River. It is based on land survey data recorded by General Land Office (GLO) surveyors between 1851 and 1910, including township and section line data. It was completed in stages, funded by the Oregon Department of State Lands (1995, 1996), the USDI Bureau of Land Management (1995, 1997, 1999), the Oregon Community Foundation (1997), the Environmental Protection Agency (1997), the City of Portland Bureau of Environmental Services (1997), the Oregon Department of Fish and Wildlife (2000), the USDA Forest Service (2002, 2008), The Nature Conservancy (2007), and Metro (2007). Date of last data update: 1910 This is official RLIS data. Contact Person: Joe Gordon joe.gordon@oregonmetro.gov 503-797-1587 RLIS Metadata Viewer: https://gis.oregonmetro.gov/rlis-metadata/#/details/2202 RLIS Terms of Use: https://rlisdiscovery.oregonmetro.gov/pages/terms-of-useArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/78e0613614a447bcb5d0574c51a15d3a_0engRLIS DiscoveryPublicVegetation (1851) [Oregon--Portland]Web servicesOregon--PortlandOregonLast Modified: 2025-05-01