On 6-9-2013, the vessel was on Lake Tahoe, southbound near Dead Man''s Point.  The owner, Operator went into the cabin to check on something and let another occupant drive.  While traveling approximately 25 MPH, that person suddenly shifted the boat into reverse.  Operator restarted the motor and saw that water was coming into the boat through a bushing near the motor/transmission.  He shut the motor off, set the anchor and called emergency services.  The U.S. Coast Guard, Washoe County and Douglas County rescue vessels arrived.  The occupants of the disabled vessel were taken to shore by the Coast Guard and Douglas Fire vesels.

Operator returned the next day and saw the boat was no longer anchored and had blown onto the rocks.  

It is unkown if the anchor gave was or the anchor line broke.

the diagram above shows the relative position of the vessel when it was left at anchor and then the following day after blowing onto the rocks.  The grey circles on the right side of the diagram represent granite boulder that make up the shoreline.  Since no one witnessed the vessel''s path when it drifted onto the rocks, the diagram indicates it''s starting and ending positions.
Glenbrook