National Park Screen Saver features crisp photographs of National Park sites, captured in United States National Parks of the American West. The featured selection includes images of some of the worlds most spectacular scenery and natural features. The relaxing slide show presentation of 12 images allows user control of transition timing, audio and 23 selectable effects. The control engine also permits users access for controlling features of other system screen savers. Images in the Screen Saver include: Angel's Landing in the heart of Zion Canyon in Zion National Park, Utah; Delicate Arch in Arches National Park, Utah; The Confluence of the Colorado and Green River in the center of Canyonlands National Park, Utah; Grand Canyon of the Yellowstone River in Yellowstone National Park, Wyoming; Grand Canyon from Bright Angel Point in Grand Canyon National Park, Arizona; Crater Lake in Crater Lake National Park, Oregon; Coast Redwood Trees in Redwoods National Park, California; and many other uniquely stunning locations in some of America's National Parks. Each photograph is formatted at 640x480 pixel resolution which economizes file size and optimizes presentation smoothness for relaxed viewing. Purchase allows permanent enjoyment of this uniquely beautiful screen saver.