The once-mighty Colorado River used to feed into a beautiful wetland and estuary during its pilgrimage to the Sea of Cortez. After years of overuse and a historic drought, all that is left in its Delta is sand and silt carved into dendritic channels on the ebb flow of tidal currents. From the window of a two-seater flying low over the earth’s crust, I captured the sea’s attempt to reclaim the land once formed by the river, leaving its signature scrawled in clay.