. . . . . . . . . . . . "1.9605E10" . "300000.0" . . "impassable salt marshes" . . . . . "135000.0" . . "Sand Sea" . . "Qattara" . . . . . "1.213E12" . "Qattara Depression Project" . . . . . . "Qattara Depression" . . "-147.0" . . . . . "Qattara Depression" . . . . . . "-60.0" .