Water is slowly inching up the thick bathtub ring of calcium carbonate that bleaches Lake Mead’s rocks.
After years of drought, Lake Mead, which is located in Nevada and Arizona, reached drastically low levels last summer, but the water levels have started to recover after a wet winter. Water continued to rise as snowpacks melted throughout the summer.
A white “bathtub ring” has bleached a thick band of rocks at Lake Mead for years and shows the severity of the decades-long drought that depleted the lake. As the water levels continue to rise this summer and submerge the rocks, the

