Whether you're a novice or experienced hiker, AllTrails is a great tool to have on your phone. Here are my favorite features of this popular outdoor app.

The teenager began to hallucinate, claiming to see 'snowmen and Kermit the Frog', before walking towards the edge of the ...

It is unclear whether the father and son reached the summit, but any travelers reaching altitudes of 8,000 feet — sometimes lower — are susceptible to altitude sickness and symptoms.