[blam]

Imagine the Altiplano filled up with water, huh. What happend to the mountains in the middle? Islands huh?

[#3Fan]

The altiplano of South America is irregular and there are mountains in the middle. It doesn't sound like Plato's account. Vital statistics of the plain:

Plain
Oblong, 3000 stadia long, 1000 stadia wide (330 miles long and 110 miles wide)
Open to the sea on the south (where the canal exited to the sea)
Surrounded by mountains to the north

Ditch around the Plain
100 feet deep
1 stade wide
10,000 stade long (surrounding the whole plain) (1100 miles long)

Looks very regular (rectangular). The 110 foot deep, one third mile wide ditch is huge and should still be there if it ever existed in South America.