RedactedNarrative: V1 Operator advised he had been marking fishing locations with his GPS and decided to motor back to the Caddo Drive boat ramp.  He was watching his fishing graph while motoring when a boat came out of a cove, so he motored behind the boat and crossed over its wake.  Shortly thereafter V1 grounded on the bank.  The operator didn't immediately report the accident.  A COE ranger discovered V1 the next day still grounded about 15ft up on the bank.  Damage was to the bottom of the hull and the lower unit.