The following is by Peter Kummerfeldt.  I check his web site and blog routinely.

by Peter Kummerfeldt

The single most important step in getting rescued quickly is to leave a trip plan with two reliable people you can count on to raise the alarm when you don’t show up on time. It follows, then, that having left a trip plan you abide by it and if you deviate from the plan, inform those with whom you left the original plan.

Include in the Plan:

To read the rest of Peter's post go here.