A heavily traveled trail which frequently makes lists of America's 10 Most Dangerous Hikes. The most cited risk is dehydration, particularly during summer months. But having been down the trail a number of times (winter) one of my major concerns was tourists and inexperienced hikers who may have no concept that there are accepted courtesies relating to things like right of way. As to stepping out of the way for another gentleman to, kind of, squeeze in," you have to be kidding.