Hike through unique, abandoned train track scenery, tunnels, and trestles just outside of Timber, Oregon. The trailhead GPS Grid Coordinates are 45°42′16.26″N 123°24′40.58″W.
To get to the trailhead (Located in the Tillamook State Forest) from Portland Oregon, take US 26 west for 36 miles to the Timber Junction and then turn left onto Timber Road. Drive 3 miles to the town of Timber and turn right onto Cochran Road. The pavement will end in a half mile. You’ll pass Reeher’s Camp at 5.5 miles; stay left just after that, then go right at a junction at 6.6 miles. At 9.6 miles, go left onto another unsigned road, then at 9.7 take the far-left road at a three-way intersection. Park at 0.1 mile ahead, just before the road crosses the train tracks. There are no facilities on site and there is no trailhead fee required.
More details here.