4.8
(980)
23,306
hikers
193
hikes
Dog friendly hiking trails in King County traverse a diverse landscape, from saltwater shorelines to the forested foothills of the Cascade Mountains. The region features numerous alpine lakes, dense evergreen forests, and prominent waterfalls. Hikers can explore river valleys and trails that ascend to viewpoints overlooking the surrounding area. This varied terrain provides a rich backdrop for outdoor exploration.
Last updated: April 27, 2026
5.0
(10)
75
hikers
10.5km
03:07
310m
310m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
14
hikers
7.32km
02:03
140m
140m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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10
hikers
19.0km
09:48
1,510m
1,510m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
10
hikers
9.09km
03:05
510m
440m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
10
hikers
7.57km
02:06
130m
130m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Popular around King County

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Pretty -- don't be deceived by what looks like a trail on the far side of the falls though, it's not a real trail.
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There is a small bit of gravel road up to the 1,614-foot Cougar Mountain. Although it is gravel, the road is generally well-maintained, but might be a little unpleasant on super, super skinny tires. This is one of the Issaquah Alps and a must-climb if in the area. You get great views from the summit.
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Keep an eye out for the signs on the trees for the criss-crossing trails.
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When navigating to the peak, some of the downed trees and vegetation can make it a bit confusing. There's white spray painted arrows on the ground at the most confusing spots, so keep an eye out for those!
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Cougar Mountain Park spans nearly 3,000 acres, featuring over thirty-five miles of fantastic trails winding through second-growth forests, streams, wetlands, cliffs, and historical mining caves. There are breathtaking views throughout the park of the Cascade Mountains, Lake Sammamish, Bellevue and Seattle, along with other more secluded areas, which are ideal for spending time surrounded by nature away from the fast pace of the city. Most trails are mainly for hikers; however, some allow horseback riding, so keep an eye out for equestrians as you explore this beautiful area.
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About 0.24 mile below the summit of Mount Si, this viewpoint on the Mt. Si Trail offers sweeping views of the Snoqualmie Valley through the trees. There are some boulders in the way of the view, but some will scramble around to see the view. Be careful, as veering off trail can be unsafe. The best views are close, at the summit!
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The scramble up and down the final pitch is exposed and dangerous. Be careful, go slow and follow the “three points of contact” rule.
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To reach the top of Mount Sai, you have to climb a steep rock wall. You need to be very careful when coming down as it is somewhat dangerous.
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King County offers a vast network of outdoor spaces, with over 180 dog-friendly hiking routes available on komoot. These trails cater to various skill levels, from easy strolls to more challenging ascents.
The dog-friendly trails in King County are highly rated by the komoot community, with an average score of 4.76 stars. Hikers frequently praise the diverse landscapes, well-maintained paths, and the opportunity to explore with their canine companions.
Yes, King County has numerous easy and moderate dog-friendly trails perfect for beginners and families. Many routes offer gentle terrain and shorter distances. For example, the Sky Country to Harvey Manning Loop is a moderate option that's not overly strenuous.
Absolutely. For experienced hikers seeking a challenge, King County offers several difficult dog-friendly routes with significant elevation gain and longer distances. The Mount Si, Blowdown and Teneriffe Loop is a prime example, featuring over 1,500 meters of ascent and panoramic views of the Cascade Mountains.
Yes, King County is home to impressive waterfalls that can be accessed via dog-friendly trails. You can visit the majestic Snoqualmie Falls or the beautiful Franklin Falls, both offering stunning natural scenery for you and your dog to enjoy.
King County's dog-friendly trails traverse a wide variety of natural landscapes. You'll find dense evergreen forests, serene alpine lakes, river valleys, and trails leading to viewpoints with sweeping vistas of the Cascade Mountains. The region is rich in diverse flora, including Douglas fir and western hemlock, providing a beautiful backdrop for your adventures.
Beyond natural beauty, King County's trails offer several points of interest. You might encounter the historic Granite Mountain Lookout, or enjoy the views from Little Si Summit. Some trails also feature unique geological formations like Talus Rocks.
Permit requirements can vary depending on the specific trail and land management agency. While many King County Parks trails do not require permits for day use, some areas, especially within national forests or state parks, might require a Discover Pass or other specific permits. Always check the regulations for your chosen trail beforehand.
King County offers year-round hiking opportunities. Spring brings blooming wildflowers, while summer provides warm, sunny days perfect for higher elevation trails. Autumn showcases vibrant fall foliage, and many lower elevation trails remain accessible for winter hikes, often with a dusting of snow creating a magical atmosphere.
Yes, King County features many excellent dog-friendly loop trails, which are ideal for varied scenery without retracing your steps. Examples include the Longview Peak and Far Country Lookout Loop or the Boundary Trail to Log Jam Trail Loop, offering diverse experiences.
While many trailheads in King County are best accessed by car, some popular parks and urban trails are reachable via King County Metro Transit. For specific routes, it's recommended to check the King County Metro trip planner in conjunction with your chosen trailhead location.
Many towns surrounding King County's hiking areas, such as North Bend, Issaquah, and Redmond, offer dog-friendly cafes, pubs, and accommodation options. It's always a good idea to call ahead to confirm their pet policies before visiting.
Yes, King County is known for its beautiful forests, and many dog-friendly trails wind through areas with impressive old-growth conifers. Locations like Cougar Mountain Regional Wildland Park and the Tradition Plateau Natural Resource Conservation Area offer opportunities to experience these ancient woodlands.


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