This took place in the Bitterroot Mountains in Idaho, in 1902. My wife and I were out on a pack-train trip with two New York friends. We had seen some rough country in Colorado and Wyoming, but we soon agreed that the Bitterroots were the roughest of all the mountains. It took twenty-eight horses to carry the stuff, for which eighteen were enough in the more southern Rockies.

The trails were so crooked and hidden in thick woods, that sometimes the man at the rear might ride the whole day, and never see all the horses until we stopped again for the night.

THE TERROR OF THE MOUNTAIN TRAILS

There were other annoyances, and among them a particularly dangerous animal. The country was fairly stocked with Moose, Elk, Blacktail, Sheep, Goats, Badgers, Skunks, Wolverines, Foxes, Coyotes, Mountain Lions, Lynx, Wolves, Black Bears and Grizzly Bears, but it was none of these that inspired us with fear. The deadly, dangerous creature, the worst of all, was the common Yellow-Jacket-Wasp. These Wasps abounded in the region. Their nests were so plentiful that many were on, or by, the narrow crooked trails that we must follow. Generally these trails were along the mountain shoulder with a steep bank on the upside, and a sheer drop on the other. It was at just such dangerous places that we seemed most often to find the Yellow-Jackets at home. Roused by the noise and trampling, they would assail the horses in swarms, and then there would be a stampede of bucking, squealing, tortured animals. Some would be forced off the trail, and, as has often happened elsewhere, dashed to their death below. This was the daily danger.

One morning late in September we left camp about eight, and set off in the usual line, the chief guide leading and the rest of us distributed at intervals among the pack-horses, as a control. Near the rear was the cook, after him a pack-horse with tins and dishes, and last of all myself.

At first we saw no wasps, as the morning was frosty, but about ten the sun had become strong, the air was quite mild, and the wasps became lively. For all at once I heard the dreaded cry, "Yellow-Jackets!" Then in a moment it was taken up by the cook just ahead of me. "Yellow-Jackets! look out!" with a note almost of terror in his voice.