The controversial herd has been blamed for damaging vegetation, archaeological sites and animal habitat. Land managers say they want to keep the population between 200 and 300 animals.

A bison herd on the North Rim of the Grand Canyon continues to grow, prompting wildlife officials to send 100 of the wild animals to the Cheyenne River Sioux Tribe in South Dakota.

In an effort to control the Grand Canyon National Park's bison population, 100 of the hump-backed, shaggy herd animals were relocated last week. According to the National Park, its wildlife managers moved the 100 bison from the park's North Rim to South Dakota's Cheyenne River Sioux Tribe on Sept.