 The highway passes through Trafton, where it intersects a road that leads to the U.S. Navy's Jim Creek Naval Radio Station, and continues northeast around Ebey Hill.It is joined by the Whitehorse Trail, an unpaved hiking and equestrian trail that is being developed by the county government along a former railroad grade.SR 530 then crosses the North Fork Stillaguamish River on a steel tied-arch bridge and turns east, following an arm of Frailey Mountain that runs parallel to the Skagit–Snohomish county border.