I’ve been to the source of the Mississippi (in Minnesota), a small spring flowing out of the ground.
The Mississippi receives most of it’s flow from it’s major tributaries, the Missouri, the Ohio, the Arkansas, etc. all downstream from Minnesota.
http://en.wikipedia.org/wiki/Category:Tributaries_of_the_Mississippi_River
Very interesting, I ever thought about where the Mississippi started.
I didn’t see the spring, but I did see the lake and even walked across the Mississippi at its source. But I didn’t walk on water, mind you.
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Lake Itasca is no small spring.