What's a good Android app for planning a trip to a US National Park, including finding trails and points of interest?

For planning a trip to a US National Park, the National Park Service app is an invaluable tool. It provides detailed maps of each park, allowing you to explore trails, scenic viewpoints, and historical sites. You can easily locate points of interest, such as visitor centers, campgrounds, and picnic areas. The app also offers up-to-date information on park alerts and closures, ensuring you're aware of any potential hazards or restrictions. Furthermore, it provides offline access to maps and information, which is especially useful in areas with limited or no cell service. With the National Park Service app, you can create a personalized itinerary and make the most of your visit to these natural treasures. The app also includes accessibility information to help plan your visit, along with things to do and see. This comprehensive tool is essential for anyone looking to explore and appreciate the beauty of America's National Parks.