Playing with my golf buddies at Mt. Woodson just outside of San Diego, had played here about 5-6 times. We came to the Par 3, 11th hole playing at 115 yds. I took a 9 iron and teed up a new Titleist Velocity 00 orange no, ball and hit kind of a low shot that bounced off a large mound in front of the hole up into the air and the ball disappeared behind the mound.. My friends father asked where it went as he did not see the ball on the green. We thought at first it may have got caught in some grass we couldn't see behind the mound. When we drove up to the green there was no grass and no ball, my buddy went over to the hole and pulled out the pin and out came my ball.