WWII Fighter Plane Firing Rockets Photo

Another of my June Rose Bowl finds. An 8" x 10" framed photo of a fighter plane firing rockets towards a river. Not sure if it is vintage or repro but came with the frame so it was a good buy.
Looks like a P-51 Mustang to me and hmmm that means it could possibly be Korean War. More likely WWII but hard to say unless someone recognizes the river. Anyway a WWII plane.
It is in the Hall of Arms and Armor and there was a blank spot waiting for it.
Last photo is my Rose Bowl haul although the GI Joe footlocker with goodies is on top of the radio and missed the photo.