Indigo

Look down into the gorge and there it is: a pool of the deepest blue held in a bowl of striped rock, so still that the water at its far edge turns gold where the light reaches it. A pale plume curls out across the surface.

The walls rise on every side in bands of grey and pink and rust, layer stacked on layer, and away at the top a slice of orange stone burns bright where the sun gets in.