Trail 25 and Centennial Loop

This loop is generally rated as moderate. While some initial sections are relatively flat, offering a good warm-up, other parts involve elevation gain with some notable hills. The varied terrain includes dirt paths, rocky sections, and even some paved portions along the Centennial Trail.

You'll experience diverse terrain, from forested areas and open meadows to sections alongside the Spokane River. The trail features basalt rock formations, notably around the 'Bowl and Pitcher' area with its striking geological pillars. Parts follow old fire roads and an old railroad bed, with bluffs and steep canyon walls in the Deep Creek portion.

A major landmark is the Swinging Bridge at the iconic Bowl and Pitcher area, which also offers stunning vistas of the Spokane River and its unique rock formations, including the 'Devil's Toenails'. You'll also see tall ponderosa pines, expansive meadows, and dramatic scenery in Deep Creek Canyon.

The trail is conveniently located near Spokane County and offers ample parking options. Specific parking areas are available within Riverside State Park, which the trail traverses. Public transportation options are also available, making it an accessible choice.

As the trail is located within Riverside State Park, you will likely need a Discover Pass for parking. This pass is required for vehicle access to state parks and recreation lands managed by the Washington State Parks and Recreation Commission. Check the official Washington State Parks website for current fee information and regulations.

Yes, the trail is generally dog-friendly. However, dogs must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all trail users. Please remember to pack out any waste.

The trail offers beauty year-round, but spring and fall are often ideal for comfortable temperatures and vibrant scenery. Be aware that during spring, especially after heavy snowmelt, the Deep Creek crossing can be challenging with nearly knee-deep water. Summer can be warm, so an early start is recommended.

The Deep Creek crossing can be a significant challenge, particularly in spring when high water levels can make it difficult to navigate. Water can be nearly knee-deep, so be prepared with appropriate waterproof footwear or trekking poles for assistance. It's advisable to check recent trail conditions before heading out during wet seasons.

The trail is a haven for nature enthusiasts. You might spot various wildlife, including fish in the Spokane River, birds like ospreys and bald eagles, deer, and squirrels. Keep an eye out for these creatures, especially in the quieter sections of the trail.

Yes, the route also passes through sections of the Bowl and Pitcher Loop Trail, the Washington State Route 291 Bike Route, the Spokane River Centennial Trail, and Trail 25 itself, which closely follows the river for much of its course. You'll also encounter parts of Trail 101.

Riverside State Park, established in the 1930s, offers a blend of natural beauty and historical significance. Beyond the Discover Pass requirement for parking, visitors should adhere to standard park regulations, including staying on marked trails, packing out trash, and respecting wildlife. Facilities like restrooms and picnic areas may be available at various points within the park.