Is it right to ask "Where is the world's most fresh water?" without using the word found or located?

Is it right to ask this question:

Where is the world's most fresh water?

Can I ask this question without using the word "found"

Where is the world's most fresh water found?

It's almost fine grammatically, except that instead of "most fresh" you would use "freshest".

"Where is the world's freshest water?"

You do not need "found". It is sometimes used, often for no real purpose. To be pedantic, in order for something to be "found", someone actually needs to go there, and find it.

Semantically, it's tricky. What do you mean by "fresh"? Isn't the freshest water rainwater, which falls in most places?

You might have meant:

"Where is the world's largest body of fresh water?"

... which is a different question altogether, in which "fresh water" means "water that is not salty like sea water".