you and your hiking buddy are hiking a trail that gets sporadic use. you are about five miles from a trailhead where you recently left your vehicle. no other cars were seen at the trailhead. there is no cell service on the trail. cell service might be available on a nearby ridgeline. you have no spot nor personal locator beacon nor satellite phone. you watch as your buddy trips and falls, striking their head. they have scrapes but no major bleeding. they are unconscious but breathing on their own.
suggestions?
do you stay or do you go?
if you leave, where and how do you leave them?
where do you go?
i know there may be variables i've neglected. and without adding anything else to the mix, what do you do?
my concern is hiking ethics.
this is not based on anything other than my imagination.