1998. Metro Data Resource Center. This polygon data layer represents United States Census Bureau census tracts for Portland Metro, Oregon in 1998. The dataset was originally publish...
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1998. Metro Data Resource Center. This polygon data layer represents the National Wetlands Inventory for Portland Metro, Oregon in 1998. The dataset was originally published by the ...
1998. Metro Data Resource Center. This polygon data layer represents slopes greater than 25% for Portland Metro, Oregon in 1998. The dataset was originally published by the Metro Da...