Trail 25 and Centennial Trail Loop

The Trail 25 and Centennial Trail Loop is generally considered moderate. While some sections are easy, particularly on paved portions, the route includes elevation gains and a potentially challenging Deep Creek crossing, which may require wading depending on water levels. It's suitable for hikers with some experience.

You'll encounter a diverse range of terrain, including paved sections, wide double-tracks, and narrower single-track paths. The trail meanders through mixed forests, open meadows, and areas with impressive basalt cliffs and rock formations, especially in Deep Creek Canyon. The Deep Creek crossing can be rocky and uneven.

Highlights include the impressive basalt formations and ancient fossil beds in Deep Creek Canyon, serene views of the Spokane River, and a suspension bridge offering excellent photographic opportunities. The Spokane River Centennial Trail section also features historical markers detailing the region's past.

Spring and early summer are particularly beautiful, with vibrant native plants and wildflowers in bloom. However, the trail can be enjoyed year-round, though conditions may vary. Be aware that the Deep Creek crossing can be more challenging during periods of higher water.

Yes, the trail is generally dog-friendly. However, always ensure your dog is on a leash and that you pack out any waste. Be mindful of the varied terrain and potential water crossings for your pet.

Since much of the loop is within Riverside State Park, a Discover Pass is required for parking at some trailheads. You can purchase a day-use pass or an annual pass. Check the Washington State Parks website for current fee information.

Several trailheads provide ample parking, including the Bowl and Pitcher campground area within Riverside State Park. Remember that a Discover Pass is required for parking at state park trailheads.

The area is rich in wildlife. Keep an eye out for diverse bird species, including ospreys and bald eagles, as well as deer and squirrels. The river sections are particularly good for birdwatching.

Yes, this loop combines sections of Spokane River Centennial Trail and Trail 25. It also intersects with other trails within Riverside State Park, such as the Interpretive Loop Trail, Trail 401, Trail 411, Trail 403, Trail 400, and Trail 402, offering opportunities for varied hiking experiences.

Given the moderate difficulty and varied terrain, it's advisable to bring plenty of water, snacks, and appropriate footwear. Trekking poles can be helpful, especially for the Deep Creek crossing, which may involve wading through knee-deep water depending on conditions.