WOHVA (Washington Off-Highway Vehicle Alliance) has a permanent place on the web to host their "one stop" web site for listing all the areas, roads, and trails in WA state that allow OHV (ATVs, 4x4s, and dirt bikes) travel.
Here's where you can find it:
Washington State Off-Highway Vehicle Map Catalog Home Page - Courtesy of WOHVA
This is a culmination of a three-year project of WOHVA to get all these areas, roads, and trails listed in one place on the web.
Currently we are adding a long list of areas, roads, and trails. Once we complete this task, we will have a page where you can suggest others sites we may have missed!
Check it out often!