Stella and Teresa are two small alpine lakes that lie in the shadow of Wheeler Peak in Great Basin National Park. Their emerald green color is created when fine glacial material known as rock flour floods into the lakes during snowmelt. Rock flour is very light, and stays suspended in the water. When the light hits the surface the rock flour distorts the wavelengths of light, reflecting back more of the green and blue end of the spectrum. This artwork was produced under the Darwin Lambert Artist in Residence Program at Great Basin National Park.