Trails Illustrated topographic maps are the most detailed and up-to-date recreation maps available for these national parks, national forests and popular outdoor recreation areas. Detailed and accurate coverage for Yellowstone National Park, this map includes a detailed road network and popular trails, complete with use restrictions, mileages, elevation gains, and difficulty ratings. Popular attractions and park services are clearly identified. UTM and Latitude/Longitude grids ensure ease of use with GPS or compass navigation.