Frontier Footprints: A True History of the Rocky Mountains by Amy Kathryn Allen

Previously

…He listened to the sounds of the wilderness – the hoot of an owl, the rustle of unseen creatures in the undergrowth, the distant cry of a coyote. These were the ancient sounds, the songs of a world that was slowly, inexorably, yielding to the relentless march of man. And in the heart of the Rockies, the silent watchers continued their struggle, their footprints etched into a landscape that was forever changing, forever bearing the indelible marks of those who had come to conquer it. The wild heart of the mountain beat on, but its rhythm was growing fainter, a melody struggling to be heard above the cacophony of progress.