Geology and geologic processes provide the foundation of the ecosystem at Timpanogos Cave National Monument. Extreme relief dominates this landscape where the American Fork River has cut down through the layers of rock concurrent with regional uplift of the Wasatch Mountain Range. The prominent scarp of the Wasatch normal fault defines the western margin of the Wasatch Mountains. This dynamic area is geologically active and understanding the geology is useful for predicting hazards to visitors and better preserving, restoring, and showcasing park resources.