sentences:  From east of the Canadian Rocky Mountains to the mountains of Labrador, the golden eagle is found in small numbers in boreal forest peatlands and similar mixed woodland areas.In the foothills of the Rocky Mountains in the United States are plains and prairies where golden eagles are widespread, especially where there's a low human presence.Here, grassland on low rolling hills and flat plains are typical, interrupted only by cottonwood stands around river valleys and wetlands where the eagles may build their nests.