If Mailbox Peak hasn't totally drained you, head along the ridge to the east up to Dirtybox Peak.
The trail takes hikers through brush and over rocks, some of which may require some scrambling. Entering deep brush, the trail fades, at times disappearing completely. But stay on the ridge spine, and soon enter a forested section. Keeping in view of I-90, make your way up the shady hillside. Arrive at the summit, marked by a large rock nestled in trees.
Take a well-deserved rest, and enjoy a view of Mailbox seldom seen. Further views of Mailbox, as well as Dirty Harry's Peak, Bandera Mountain, and Webb Mountain are possible by continuing east, but keep in mind that at this point the scramble becomes more dangerous, with several sections where a fall could be fatal. Experience is highly recommended for anyone exploring further.
Hiking Dirtybox Peak
Map & Directions
Co-ordinates: 47.4634, -121.6708 Open in Google Maps