Travel extensively through the National Park System, and you’ll quickly come to realize that the park’s restaurants try to reflect the local culinary trends, or at least use local ingredients in crafting their menus. For instance, visit national parks in Alaska and you can pretty much count on salmon in the dinner offerings. Travel through the parks in the Rocky Mountains, and elk (and sometimes bison) will appear on the menus. Explore parks in the southwest, and you can almost predict that cacti will show up in some form.