Two sections of the Whitehorse Trail, which runs along a former Burlington Northern rail line, are currently open for use. The eastern end of the trail spans 6 miles between Darrington and Swede Heaven Road. West of there, most of the rest of the planned trail to Arlington is officially closed due to trestles and bridges that need to have decking and railings installed. In 2013, one such bridge was improved, and another trail segment is now open from the link with the paved Centennial Trail in Arlington to 115th Avenue in Trafton.
Frequently paralleling State Route 530 and the North Fork Stillaguamish River, the trail corridor winds through a series of farm, forest and river environments, and contains several fishing access points and river bridge crossings. The route is very scenic with many views of the Cascade Mountains, especially Whitehorse Mountain, Mount Higgins, Prairie Mountain, and others.
The trail surface is mostly unimproved, so mountain bikes are recommended. Trail users should look out for patches of loose rock.
Additional sections of the Whitehorse Trail will open as the county is funded for decking and railing installation. Check the official website for updates.
The trail ends in Darrington with access at the junction of Railroad Avenue and Price Street. There is parking on Railroad Avenue near its junction with SR 530.