Greenway Trust Priority Area: Snoqualmie Valley, Upper Yakima BasinMap Categories: Cultural and Natural Heritage Sites, Trails The non-motorized, cross-state Palouse to Cascades State Park Trail lies on the former Milwaukee Road railway grade from Rattlesnake Lake near North Bend east across Washington State. The level grade of this gravel trail makes it ideal for mountain bikers, equestrians, and walkers. Major trailheads in the Greenway sit at Rattlesnake Lake, Cle Elum,...