JES II,
You're correct.
TEPaul,
It's unfortunate that you didn't play at GCGC with us.
A perfect example is the drive on the 7th hole.
Two features obscure the fairway and its boundaries, but not the golfers on the hole.
Tall grass and a low crossing berm.
Golfers on the tee just see a vast expanse of grass, golfers and two flags in the distance, the 10th hole flag, which is one color, and the 7th hole flag, which is another color.
They can't see the fairway/rough boundaries.
They can't see the contoured or angled fairway lines.
Golfers familiar with the hole tell members of their foursome unfamiliar with the hole to aim at the ball washer on # 8 or the yellowish house vaguely visible through the foilage in the distance.
On # 4, one of your most unfavorite features exists, a checkered flag in the fairway warning of a deep fairway bunker on the left. On that hole, the tall grass combined with a fairway that begins sloping down, away from the golfer hides the DZ to short and long hitters alike.
On the 4th tee, again, a sea of grass is all the golfer sees.
He can see golfers in the fairway, and, the tall smoke stack in the distance, which is a great aiming mark for those familiar with the hole.
With wide fairways, this feature still creates a sense of uncertainty in the golfers mind.