Chumbivilcas, Golden Lassos is a chronicle book written by Rafael "Rafo" León with photographs by Sergio Urday. An exquisite coffee table book, bound in hardcover, and luxuriously illustrated with photographs. The volume is a deep dive into a magical and earthy world, spanning lands, where courage and daring are cherished by men educated from childhood in riding horses. These riders, known as qorilazos, have an ancient and grand tradition, which they uphold in festivals where they also sing, play music, and engage in traditional Chumbivilcan bullfighting.