Coffin Mountain Trail is a hiking trail in Linn County, Oregon. It is within Willamette National Forest. It is 1.3 miles long and begins at 4,737 feet altitude. Traveling the entire trail is 2.8 miles with a total elevation gain of 1,364 feet. The Coffin Mountain Parking is near the trailhead. Along the trail there is a communication tower. The trail ends near Coffin Mountain (elevation 5,571 feet) and the Coffin Mtn Lookout observation tower.