Watershed Triptych harnesses the light of bioluminescent dinoflagellates to illuminate watershed maps from the United States Geological Survey Hydromap project. These organisms, colloquially known as sea sparkle, are also the same marine life that generates red tide algal blooms. Though sometimes naturally occurring, these harmful blooms have been increasing in numbers over the past 30 years as larger and more powerful storms flood factory farms causing excessive nutrients to spill into the waterways from CAFO overflows. These maps represent the three largest watersheds in the United States and the outflow areas where algal blooms have been recorded.