RedactedNarrative: VESSEL 1 WAS NORTHBOUND ON LAKE TEXOMA TOWING A SKIER ON WAKE BOARD BEHIND VESSEL 1.  VESSEL 1 ENTERED INTO A VERY SHALLOW AREA CAUSING VESSEL 1 TO BECOME GROUNDED AND INOPERABLE.  AREA OF THE INCIDENT WAS APPROX 350 FEET WEST OF THE EAST SHORE OF LAKE TEXOMA AND  APPROX 1 MILE NORTHEAST OF LITTLE GLASSES MARINA.