"The Motor Boys Over the Rockies" is a thrilling continuation of the adventures of Jerry, Ned, and Bob - the Motor Boys - as they embark on an exhilarating journey to conquer the rugged Rockies. The story begins with the boys receiving an invitation from a relative to visit him in the West. Eager for new experiences and challenges, they excitedly set out on a cross-country road trip in their trusty motorcars. Their destination: the majestic Rocky Mountains. As they travel through vast plains and picturesque landscapes, the boys encounter various obstacles and adventures along the way. They face mechanical challenges with their cars, navigate through unpredictable weather conditions, and experience the warmth and hospitality of the people they meet during their journey. Upon reaching the Rockies, the boys are awestruck by the majestic beauty of the mountains. They embark on a thrilling exploration, discovering hidden trails and encountering fascinating wildlife. But their journey takes an unexpected turn when they stumble upon a hidden mystery that leads them to an old prospector's lost mine. Intrigued and determined, the Motor Boys decide to solve the mystery and uncover the long-lost mine's treasure. Along the way, they form unexpected alliances with local guides and encounter suspicious characters who try to thwart their efforts. The boys' resourcefulness, courage, and teamwork are put to the test as they navigate through treacherous terrains and face perilous situations. As the boys delve deeper into the mystery, they unravel secrets of the past, including the legend of a lost gold mine, and face challenges that test their friendships and resolve. The journey becomes a thrilling quest filled with danger, excitement, and the triumph of the human spirit. Throughout the book, Clarence Young's vivid descriptions of the breathtaking Rocky Mountains immerse readers in the beauty of nature and the thrill of adventure. The story highlights the values of