The 15th hole at Black Sheep is a dogleg right to an elevated green. The original design had 3 small, shallow bunkers guarding the inside of the dogleg. Three more shallow bunkers could be found short and left of the green, which is elevated. The hole is a great design becasue if you steered your tee ball away from the dogleg to the wider part of the fairway, your 2nd shot was more challenging, which forced you to carry the greenside bunkers and play from a less desirable angle. To get the best angle of attack for the 2nd and have the opportunity to play to the wider part of the green, you needed to challenge the right side of the hole and the dogleg.
However, from the up tees, members were hammering the ball over the bunkers in the dogleg and getting a great angle for their 2nd shot. Even if members did end up in the bunkers in the dogleg, they still were able to go for the green in two most of the time becasue the bunkers were not deep enough.
The owner found all of this troubling. He had the three bunkers inside the dogleg expanded into one massive bunker, probably quadrupling the ground the bunker ate up and deepened it significantly. The carry off the tee was lengthened roughly by 30 yards and if a ball ended up in the enormous bunker complex in the dogleg, it was so deep your only option 90% of the time was to chip out sideways.
While he was at it, the owner also significantly deepened the three bunkers short of the green. If you are in those bunkers now, because of the modifications and the elevated green, you cannot see the putting surface.
The changes have brought back a true risk/reward element to the 15th and made it a much better golf hole. The dogleg today is usually not carried, so, to get the favorable angle for the 2nd shot, you need to take a line down the extreme right side of the fairway, running your tee ball on the edge of the bunker complex the entire way. You can still paly it safe off the tee, playing well left of the dogleg, but, the deepened greenside bunkers left and short of the green are now a real terror.
Interestingly, the owner added a similar large bunker complex on another hole, which replaced a large area of prairie grass. This was done to make the hole easier, not harder. Tee balls that went into the head high prairie grass area were gonzo, so, the bunker was added to allow players to find their ball and play a recovery shot.