Do nothing to disturb the natural flora or fauna. Every flower picked is one less for those behind you to enjoy and less seeds for next year's flowers. Do enjoy yourself, your animal and the natural beauty around you. Visit with your trail companions. And last of all, leave a clean trailhead or camp, free of manure, pleasant for the next user.
Enteroliths are stones that form around a foreign object in the intestine of horses.
Smaller enteroliths are passed through the intestine. Larger ones will result in fatal colic unless surgically removed. The number of enterolith cases seen at UC Davis has steadily increased over the last decade. Feed oat or grass hay. Reduce or eliminate bran from your horse's diet.