Many of these trails—and others—can be covered by visitors on summer trips with the park ranger-naturalists. These escorted hikes help you to get your bearings in the park, as well as understand the natural features encountered along the route. If you are interested in hiking, you should join a few of these naturalist trips. In this way, you quickly realize the possibilities for your unescorted hikes, if you prefer to travel on your own. The park ranger-naturalists will help you plan other hikes and will do all they can to make your trail trips safe, interesting, and enjoyable. This outline of trail-trip possibilities is only a beginning. There are also trips to Lawn Lake, Tyndall Glacier, Windy Gulch, the North Fork of the Thompson River, and Chasm Lake. Information on the far more difficult mountaintop trips is not included here. If you expect to ascend such mountains as Longs Peak or McHenry’s Peak, be sure to consult the park ranger at the nearest ranger station or go to the chief ranger’s office in Estes Park village. Routes to be followed may vary from week to week because of changes in snow conditions; ask park rangers for up-to-date information. Remember to get a fire permit if you plan to camp out on the trail. SUGGESTED READINGS This booklet may help your understanding and appreciation of Rocky Mountain National Park, but in its limited pages only a superficial treatment can be given. The following publications—nearly all of them available for reference or purchase at the park museum information office or Fall River Pass exhibit room—have been found helpful sources of more detailed interpretation of the story of this park. _Birds_ Niedrach, Robert J., and Robert B. Rockwell, _Birds of Denver and Mountain Parks_. Denver Museum of Natural History, 1959. Peterson, Roger Tory, _Field Guide to Western Birds_. Houghton Mifflin Co., Boston, 1941. _Plants_