Re:Tolkien's annotated map of Middle-earth discovered in cop...
by snowwrestler on Monday October 26, 2015 @11:45AM
(#10452158)
I studied geology and none of the river paths in the LOTR map seem particularly unrealistic. Tolkien's map shows local elevation but not absolute elevation, which, when it comes to a river's path, matters more than people think.
For example, the plain between the Misty Mountains and Mirkwood could be like the plain in front of the Colorado front range: dead flat, but still at 5,000+ feet in elevation. That would give it plenty of vertical drop to the sea. It's certainly possible that the absolute elevation of the Anduin at the ford at Carrock is similar to the summit of the mountain behind Minas Tirith!
And it takes doesn't take much elevation drop to make a river flow. The Lune would work as drawn if there were cliffs or hills only a couple of hundred feet high on the southern edge of the Bay of Forochel, which could happen with glaciation--and it is known as the bay of ice in the books.
For example, the plain between the Misty Mountains and Mirkwood could be like the plain in front of the Colorado front range: dead flat, but still at 5,000+ feet in elevation. That would give it plenty of vertical drop to the sea. It's certainly possible that the absolute elevation of the Anduin at the ford at Carrock is similar to the summit of the mountain behind Minas Tirith!
And it takes doesn't take much elevation drop to make a river flow. The Lune would work as drawn if there were cliffs or hills only a couple of hundred feet high on the southern edge of the Bay of Forochel, which could happen with glaciation--and it is known as the bay of ice in the books.