Book: Yellowstone & Grand Teton National Parks

The title gives it away; this is one hell of a guide to two of our country's finest national parks. Although you’ll have to leave Montana, these parks have more to offer than you could dream of fitting into just one trip. Whether you want a tour of Yellowstone’s thermal features, a list of day-hikes, or places to find remote wildlife, Yellowstone and Grand Teton National Parks (Lonely Planet, $20) will help you hit each destination on your list. It may not have the maps you need, but it will tell you where to get them.