Flying L Trail & Inside Passage Loop – Spokane Valley

The Phillips Creek Trailhead—a portion of the Glenrose Unit of the Dishman Hills Conservation Area in Spokane Valley—opened to the public in the fall of 2020.

Under the direction of the Spokane Mountaineers, with support from Washington Trails Association and  Evergreen Mountain Bike Alliance – Eastern Washington Chapter, volunteer crews were working their magic to ensure the main Flying L Trail was ready in time for the trailhead ribbon cutting.

In the early part of 2021, the Spokane Mountaineers again spearheaded the second installment of this trail system by adding the Inside Passage Trail. It is now possible to create a loop of just over 4 miles using those two trails, or to extend the route by adding on the other trails within the Glenrose system.

From the parking lot, begin on the main Flying L Trail beyond the kiosk. This trail ascends gently through a pine forest, then breaks out into a huge grassy meadow as it climbs to the intersection with the Glenrose and Cliffs trails.

For the loop, turn right at the Cliffs and continue a half mile to the connection with Inside Passage, which remains in the trees and takes hikers back to the bottom of the meadow.

Return to the parking lot via the main Flying L Trail. This hike can be considered easy to moderate, and is 4.2 miles round trip with approximately 700 feet of elevation gain. 

Trail runner on the Flying L Trail at Glenrose.
Trail runner on the Flying L Trail at the Glenrose Unit of the Dishman Hills Conservation Area in Spokane Valley, Wash. // Photo: Holly Weiler

Learn more about trails in the Glenrose area of Dishman Hills in Holly Weiler’s Hike of the Month story from January 2019.

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