Frequencies of Deep Time explores changes of geological time in Western New York, change that form strata in the rock formations of gorges like Watkins Glen State Park. I am interested in the stories the formations can tell of the co-evolution of life and minerals, of humans and non-humans, and their entanglement with one another and the land. I developed custom software that uses sound waves to augment three-dimensional forms animating the geological landscapes. Oscillations work as an audio-visual metaphor for change across deep time and provide a way to perform across an incomprehensible length of time.