In 1865 Union Army General Oliver Otis Howard took charge of the Freedmen’s Bureau, tasked with helping millions of former slaves become free and equal citizens. He was so committed to civil rights that Howard University was named for him. But when Reconstruction failed, General Howard was sent to the Pacific Northwest to force Native Americans onto reservations. His biggest adversary was Chief Joseph, a Nez Perce leader who doggedly pushed federal officials to save his ancestral territory and to give Native Americans equal rights. Although Joseph echoed Howard’s earlier views about liberty for freed slaves, in the summer of 1877 the general and his troops ruthlessly pursued Nez Perce families who refused to leave their homes. Thunder in the Mountains is the story of two remarkable Americans who fought vicious battles across 1,400 miles of the northern Rockies and waged a war of ideas about freedom, equality, and the role of government in American life.