Description: Polylines subset of the "Hydro-Centerlines" dataset including the major rivers and some streams with routing added so mileposts could be calculated when no physical river milepost was available (https://matterhorn.co.pierce.wa.us/GISmetadata/pdbswm_river_routes.html). Please read metadata for additional information. Any data download constitutes acceptance of the Terms of Use (https://matterhorn.co.pierce.wa.us/Disclaimer/PierceCountyGISDataTermsofUse.pdf).