Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Paradox Valley Colorado Brutal History

Greager writes a true historical account of the settling of Paradox Valley in Montrose County, Colorado. This area, often called "The slaughterhouse of the West" was settled by a tough group of men and women who often made their own laws and frequently lived beyond the reach of civil law. Greager obviously has spent a lot of time in the area and his actual accounts make this book fun to read. Recommended if you want to read a lively piece of the early history of Colorado.