“By using exquisite photography along with wonderfully figurative narratives, Brandon Kowallis accomplishes the difficult task of capturing both the breath-taking beauty and exhilaration of exploration in America's mountain west caves.”

Hazel BartonMicrobiologist, IMAX Journey to Amazing Caves

“The books narrative captures the sense and feel of exploration on the edge of a deep, alpine cave, while the accompanying photos beautifully illustrate the hidden treasures that drive cavers to risk the cold, dark reaches of the earth.”

Paul BurgerHydrologist, History Channel Host - Journey to the Center of the World