3.3
(10)
91
hikers
03:07
8.97km
490m
Hiking
Hike the moderate 5.6-mile Preston Powerline Trail Loop, gaining 1619 feet through open views and dense forest in 3 hours and 7 minutes.
Last updated: February 26, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
8.97 km
End point
Way Types & Surfaces
Way Types
6.23 km
2.74 km
Surfaces
8.57 km
219 m
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This route was planned by komoot.
The Preston Powerline Trail Loop is a moderate hike that generally takes around 3 hours and 7 minutes to complete. This estimate can vary based on your pace and how often you stop to enjoy the scenery.
The trail offers varied terrain. It often starts with an open, exposed section that can be rocky and hard on the ankles. After about half a mile, you'll enter a dense forest with creek crossings (which can be muddy and slippery, though some have stump steps), switchbacks, and regraded sections that are less rocky. Parts of the trail also follow old railroad grades, providing a more gentle incline.
Yes, the trail provides a striking contrast in scenery. The initial powerline section offers open views, and from some regraded parts, you might catch long views towards Mount Si. Once you enter the forest, you'll be immersed in lovely, dense woodlands featuring moss-covered trees, lush evergreens, and cedars, offering a quiet and gentle atmosphere.
Parking for the Preston Powerline Trail Loop is typically available near the trailhead. Specific parking details can often be found on local park websites or trail guides. It's always a good idea to check for current parking regulations and availability before you go.
The Preston Powerline Trail Loop is located within the West Tiger Mountain Natural Resources Conservation Area. While there isn't typically an entrance fee for the area itself, a Discover Pass is required for vehicle access to state recreation lands, including trailheads. You can find more information on permits and regulations at kingcounty.gov.
While generally rated as moderate, the trail can be considered suitable for beginners and families who are comfortable with some elevation gain and varied terrain. The initial rocky sections and potentially muddy creek crossings require careful footing. The loop's total distance is about 9 km (5.6 miles), so consider the endurance of all hikers in your group.
Yes, dogs are generally allowed on the Preston Powerline Trail Loop. However, they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all trail users. Always remember to pack out any waste.
The trail can be hiked year-round, but the best time often depends on your preference. Spring and fall offer pleasant temperatures and beautiful foliage. Summer can be warm, especially on the exposed powerline sections, so an early start is recommended. Winter hiking is possible, but be prepared for potentially muddy conditions and slippery rocks, especially near creek crossings.
Yes, the route is part of a broader network and incorporates sections of several other trails. You'll find yourself on parts of the Preston Trail, Lingering Trail, High Point Trail, West Tiger RR Grade, and Dwight's Way Trail, allowing for varied loop possibilities and access to other areas of Tiger Mountain.
Its most unique feature is the distinct transition from the exposed, open powerline corridor into a secluded, dense forest. This contrast provides a varied hiking experience. It's also known for being less popular than some other Tiger Mountain trails, offering a greater sense of solitude, and serves as an excellent access point to the wider trail network.
Given the varied terrain, sturdy hiking boots with good ankle support are recommended, especially for the rocky and potentially slippery sections. Layers of clothing are advisable due to the transition from exposed to forested areas. Don't forget water, snacks, navigation tools, and rain gear, as weather in the Pacific Northwest can change quickly. Trekking poles can also be helpful for stability on descents and creek crossings.
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