I really like my EXO mountain gear pack, I've used it to pack out 2 deer and a bear, no elk yet.

Check out the Garmin Inreach it is a satellite communication device that you can use to message you buddy in the backcountry, depending on the model you can use it as a stand alone GPS or link it via bluetooth with your phone. Each message you send will include your location. As a note it requires a monthly subscription to use the messaging features though.