I love all the information on hiking trails, campgrounds, wildlife, history, and safety. This app is truly a wealth of information. I particularly like the way it lets you pick a day hike based on features you want to see, such as views or waterfalls, and links these articles to the map directly!
The organization of articles can be a bit counterintuitive and disorganized, but its worth the treasure hunt!!!
NatalieA1986 about Great Smoky Mountains National Park - The Official Guide (Best of Bundle)