Many landscape photographers attempt to emulate the results of images already seen, perhaps with slight variations. We all do this, which is why it's so difficult to bring anything new to the table, especially when visiting an iconic and much photographed area - the Grand Canyon, for example.
If one has the time, however, and is able to get the cliches out of the way, it is possible to transcend the scene that everyone has seen and realize one's own vision. That's not to say it's easy, since the objective becomes very amorphous: wander around searching for something you don't know you are looking for.
The only upside is that the process then becomes one of discovery -- more exciting than documentation:
“If I were to wish for anything, I should not wish for wealth and power, but for the passionate sense of the potential, for the eye which, ever young and ardent, sees the possible. Pleasure disappoints, possibility never. And what wine is so sparkling, what so fragrant, what so intoxicating, as possibility!”
- Søren Kierkegaard