Writer Tom Reed is an avid outdoorsman and the author of Great Wyoming Bear Stories. He lives in southeastern Wyoming.
Visit Yellowstone National Park in autumn to experience the unforgettable call of the bull elk in the mating season.
Around a campfire in 1872 the Washburn-Langford-Doane expedition first suggested establishing a national park in Yellowstone country.
Before the reintroduction of wolves, elk predators included coyotes, black bears, grizzly bears, mountain lions and man.
Changes to Yellowstone 10 years since the 1995 wolf reintroduction program - 306 inhabited the ecosystem and created a balance between predators and prey.