60 butterfly species are covered, both common and exotic, found in the Mountain West, including Colorado, Wyoming, Montana, Idaho, Eastern Washington and Oregon, Northern Utah and Nevada. They include swallowtails, fritillaries, metalmarks, sulphurs, skippers, hairstreaks, blues, and more. Images, descriptive captions, and habitat index by Rick Cech (pronounced Check), a well known naturalist and butterfly expert, author of Butterflies of the East Coast (Princeton University Press, 2005).