Mt Defiance is the highest point along the Columbia River Gorge. The parking lot is at a mere 130’ above sea level, but the summit is at nearly 5000’. With the easy accessibility right of the freeway, lots of runners and hikers use the Mt Defiance trail to get a long, mostly pretty steady climb. On a clear day the summit provides excellent views of Mt Hood to the south. Although snow can stay until well into June, it is popular enough that there are often tracks you can follow to the top during the shoulder seasons. 

The Oregon Coast Trail (OCT) is a long-distance hiking route along the Pacific coast of Oregon in the United States. It follows the coast of Oregon from the mouth of the Columbia River to the California border south of Brookings. The trail was envisioned in 1959 by Samuel N. Dicken, a University of Oregon geography professor, approved in 1971 by the Oregon Recreation Trails Advisory Council and developed and managed by the Oregon Parks and Recreation Department as part of the state park system of Oregon.

https://www.mountaineers.org/explore/routes-places/mt-shuksan-sulphide-glacier

The Palouse to Cascades State Park Trail gives hikers, cyclists and equestrians a taste of Washington’s scenic diversity from the forested Cascade Mountains to the arid scrublands of eastern Washington. Sitting on the historic Chicago-Milwaukee-St. Paul-Pacific Railroad nicknamed the "Milwaukee Road", the trail runs from Cedar Falls near North Bend (railroad milepost 2136) to the Idaho border (railroad milepost 1850).