|Quoting IADBGO (Reply 1):|
Mud in the river, or any river for that matter is natural.
Very true, depending on the nature of the streambed. I saw a similar sight on approach to CVG
. The Ohio river, which forms the border between Kentucky and Ohio, is extremely muddy.
Other rivers, particularly those with rocky bottoms, appear much clearer. It's not that the muddy rivers are necessarily polluted, but the high silt content does affect the ecosytem compared to a rocky-bed river.
"The deeper you go, the higher you fly. The higher you fly, the deeper you go."