This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Washington state highways primarysecondary.svg This is map of the state highways in Washington as they existed in just before the old primarysecondary split was removed Primary routes are red and secondary routes are purple Thin orange is just current routes Email me if you would like copy of the GIS data created for the highways