Abbreviated for "good old raisins and peanuts" as some refer to it or "granola, oatmeal, raisins and peanuts" as others call it, GORP is a common form of Trail Mix that often uses different ingredients for variations in flavors. By adding different types of dried fruits, or candy coated chocolate bits (M&M's®) rather than chocolate chips, the recipe for the mixture changes so it continues to be enjoyable for those preferring more of a variety of flavors.