9.4 Miles RT/ 4000ft elevation gain I had heard about mailbox before even moving to Seattle. I mean, hiking to a mailbox at a top of a mountain is pretty awesome! I had great company that day as well with 3 friends with. We set out early to conquer it, and conquer we did. I was sad that there was clouds to the south blocking views of Mt. Rainier. I guess I'll have to come back to see that another day. I also discovered from this hike that my hiking boots were not the right ones for me as they would leave me with a blister on the back of my heals. This was fixed within the next week with a trip to REI and a new pair of boots in hand.