Don't forget the large signs at the trailhead. They contain a huge amount of safety information for those willing to read them. You could have a sign every 50 feet and there will still be fatalities on the Whitney Trail. Somebody will hike totally unprepared. Somebody will push ahead when their body is saying turn back. Somebody will get summit fever and continue hiking in spite of the time and the weather conditions. Somebody will underestimate the risks of winter mountaineering.
