Personal Locator Beacon
There have been some pretty lengthy discussions in this forum about having a P.L.B. with you in the back country.
This story is a perfect example of how they can save your life.http://missoulian.com/news/state-and-reg...1a4bcf887a.html
I know some guys feel that it ruins the purity of the wilderness experience, but you can bet your ass this guy and his family are glad he had one.
I carry the DeLorme InReach which allows two way text messaging when paired with a smart phone.