Whitehorse Regional Trail

​Project Description



Spanning 27 miles between the City of Arlington and the Town of Darrington, the Whitehorse Regional Trail follows the path of the former BNSF railroad through the North Stillaguamish River Valley. The trail meanders through the valley from its junction with the Centennial Regional Trail in Arlington, frequently paralleling SR 530 and the North Fork Stillaguamish River. The backcounty corridor, rewards visitors with picturesque, landscape views of forests, farmland, streams and rivers, and mountain vistas. Currently only a 6 mile portion of the trail from Darrington to Swede Heaven Road is open to the public.

Whitehorse Regional Trail development will occur in three phases.

​Phase 1



Status - Currently Underway or Completed

  • Bridge decking and repair;
  • Darrington Area Slide Repair at 435th Ave NE;
  • Trafton reconnection and trail rebuild of the missing section east of the Cloverdale Farm;
  • SR 530 reconnection and trail rebuild at the site of the SR 530 mudslide;
  • Resurfacing and compaction of the trail surface between the SR 530 mudslide site and the Cicero Ponds.

Phase 2



Status - Acquisition of the Miller Shingle Mill has been completed, and design of the SR 530 Highway crossings is currently underway. A grant application for funding of the remaining projects in Phase II has been submitted to the Washington State Recreation and Conservation Office (RCO) and Parks is awaiting funding decision results for this grant round.

  • SR 530 Highway Crossings Design and Construction;
  • Resurfacing and compaction of the trail surface between the junction of the Centennial Trail in Arlington and the Cicero Ponds;
  • Parking Improvements at Fortson Mill and Hazel Hole;
  • Beaver damage design and repair at Fortson Mill;
  • Resurfacing and compaction of the trail surface between the SR 530 mudslide site (C-Post Road) and Swede Heaven Road.

​Phase 3


Status - Future projects will be completed as funding is available.

  • Develop trail connection to Whitehorse Community Park and establish trailhead;
  • Develop Miller Shingle Mill trailhead;
  • Develop trail connection to Squire Creek Campground and establish trailhead;
  • Cultural Resource studies and partnerships with the Stillaguamish and Sauk-Suiattle Tribes for interpretive sites
  • Camping Improvements at the Fortson Mill trailhead;
  • Camping Improvements at Whitehorse Community Park;
  • Camping Improvements at Squire Creek Campground.
All acquisitions, plans and site developments are subject to funding availability and subject to Snohomish County Executive and County Council approval.

Related Links


Bridge through woods

Phase I and II Development Project Sites

Phase 2 Trail Development

Phase II Resurfacing Project

Whitehorse Trail Site Plan

​Project Contact



Amy Lucas, Senior Park Planner (Project Manager)
Snohomish County Parks and Recreation
Email: [email protected]
Phone: (425) 388-6620