Founded 100 years ago, the National Park Service protects the country's most extraordinary wilderness for generations to come, a system comprising 84 million acres representing a diversity of regions and ecosystems. Audubon National Parks Calendar spotlights a distinctive park each month with a large photograph at the top of the page, more full-color images throughout the grid, and engaging text. The cascading waterfalls and wooded trails of Virginia's Shenandoah National Park. The breathtaking peaks of California's Pinnacles, the newest national park. The sheer granite cliffs of El Capitan in Yosemite National Park. And a true frontier: Alaska's Gates of the Arctic, the country's northernmost national park and, with no roads, accessible only by air or on foot. Each month is an American treasure.