I give DW that information whenever I'm going out on an adventure. I also include:
-what time to start worrying if I don't call.
-what time to call the cops/rescue people if I haven't returned.
-google map with directions to where I'm going and location of trailhead where I'm parked.
-phone number of park ranger's office (if there is one).
-copy of my trail map with direction of travel marked.

She gets both a printout and e-mail with all this info. It gives her much comfort.

-Blast