The Western megadrought is revealing America`s `lost national park`

On a turquoise lake in a sandstone desert, Ross Dombrowski is trying to figure out what to do about the rock growing behind his houseboat. The rock, spectacular and rust red, like most in southern Utah, wasn`t visible below the water`s surface when Dombrowski moored his houseboat on Lake Powell last year.

Today, it`s three stories tall.

"I would never think it would get to this," he says, looking at the shrinking lake. "But it has."...