I don’t get it, (very interesting examples by the way). Are you saying this occurred over a slow period of time or is the result of catastrophism? I’m seriously interested.
Thank you ...
Okay, now I see your argument. But water always follows the path of least resistance, there are always valleys or gaps in ridges and mountains. What’s to make you think the water eroded slowly an uplifted land mass rather than is just flowing through natural valleys already there?