Each feature class or feature dataset is in Geographic (GCS) NAD83 unless otherwise noted
highways_arc: This file includes all state owned or maintained highways, connections, frontage roads, temporary traveled routes and located lines in the states of Oregon and Washington.
This data provides a detailed view of the state highway system based on the Linear Referencing system (LRS) used by both the Oregon Department of Transportation and the Washington State Department of Transportation. 1:24k resolution.
Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 126.96.36.1990