It is 1879.Rock Beckler wants to cross Angus cattle with his herd of Texas Longhorns. Getting the black cows to his ranch in the Bitter Root Valley in the Montana Territory is going to be a challenge though. The cattle will have to be trailed in. That could take three months, maybe even longer depending on where they can be found. Then an old friend by the name of Badger McCune writes Rock about some black cows down by Cheyenne in the Wyoming Territory that are for sale. Now Rock needs a trail boss and a crew of cowboys. The Road to Montana or the Bozeman Trail as it is being called, runs north and west through the Wyoming Territory before it enters the Montana Territory. It would be the easiest and most direct route for cattle to follow. However, treacherous river crossings, outlaws, rough towns, and range wars could affect the difficulty. Join Rock and his wife, Clare, as friendships are forged when they travel south to buy cattle. Excitement, danger, and challenges follow as the drive heads north up the Road to Montana.