National Geographic has launched a new iPhone and iPad app that is sure to please travelers visiting America's national parks. The app offers detailed maps of 15 parks, providing information on places to camp, trails to hike, locations of shops and visitors center, and other points of interests.

The program is apply named National Park Maps HD and it comes preloaded with digital versions of Nat Geo's excellent Trails Illustrated Maps. The parks that are included are amongst the most popular and beautiful in the entire national park system, attracting millions of visitors on a yearly basis.

Upon launching the app you'll be presented with a map of the U.S. with a photo representing each of the parks. Simply tap on the park you would like to explore and a detaied map will appear with an overview of the region. Double tapping the screen will allow you to zoom in even closer, showing you all the roads, campsites, and various other points of interest. And if the default maps don't have the detail you need, HD versions of each of the maps are also available to download inside the app, bringing the zoom levels up even further.

National Parks Maps HD also offers the ability to use your device's built in assisted GPS to triangulate your location and there is even an in-app compass to help you find your way. You'll also find an option to place virtual pins on the map to mark your own favorite places and the built in search function allows you to locate anything you're looking for in the park. The amount of information at your fingertips is fantastic and a real benefit for travelers.

The list of parks included in the app are Acadia, Bryce Canyon, Canyonlands, Glacier/Waterton, Grand Canyon, Grand Teton, Great Smoky Mountains, Mount Rainier, Olympic, Rocky Mountain, Sequoia/Kings Canyon, Shenandoah, Yellowstone, Yosemite and Zion. If you were to buy each of those maps in paper form, it would cost over $300.

The National Park Maps HD app is available now for $4.99. The universal app is a one time download that will work on both your iPhone and iPad. If you're planning a trip to one of the above parks in the near future, this would make an excellent travel companion for sure.

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