Northwest of Spokane, the 10,000 acre Riverside State Park has 55 miles of hiking trails.
To reach Riverside from Spokane on US90, use Exit 280. Cross the Maple Street bridge and then turn left at Maxwell. Follow Maxwell (it turns into Pettit) past the Downriver Golf Course to the park entrance.
Overall, Riverside State Park is the 41st most popular hiking trail of all 56 hikes in Washington.