You (find) an article or cash, with regard to your estimated value of the
find, how far would you go to return it to its rightful owner?

To the ends of the Earth and beyond.

Baron Max

I would follow him to Hell.

It depends on a lot of things...
If I find a $100 bill, how would I find the owner?
If I find a wallet, or something else I would be able to tell the owner's information, it would be easy to find them, and I will.
If I find a rare antique, or something that seems like a family heirloom, something that seems like it could be important to someone (and fairly unique), I would do whatever I can to find them.

Why?
What did you find?

hmmm...
If I had found a lot of money with no documents, I think I woudn't follow him even to the corner ^^
But if it has at least an address, well, maybe to moon. Or mars. bah, nevermind.