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Matthew Brown, Associated Press
In this April 24, 2012 file photo, a herd of bison roam on the Fort Peck Reservation near Poplar, Mont. Almost a decade after they were first captured from Yellowstone National Park, a group of wild bison that has spent years in limbo after government officials could find no place to relocate the animals were due to be shipped from a ranch near Bozeman Wednesday, Nov. 12, 2014 for placement on the Fort Peck Indian Reservation.

BILLINGS, Mont. — A group of 139 Yellowstone National Park bison captured almost a decade ago are finally headed to a permanent home on a northeastern Montana American Indian reservation.

State and tribal officials said the animals would be loaded onto trucks overnight Wednesday. They'll arrive Thursday at the Fort Peck Indian Reservation, home to the Assiniboine and Sioux tribes.

The bison, highly-prized for their genetics, were culled from Yellowstone's wild herds under an experimental government program to see if they could be used to start new bison populations elsewhere.

Earlier attempts to relocate them failed. They've been held on CNN founder Ted Turner's ranch near Bozeman since 2010.

As compensation for caring for the animals, Turner gets to keep 75 percent of their offspring, or 179 bison.