Ranulf: Legend has it there used to be a woolly mammoth in this area. And that's only a few years ago, geologically speaking! If you were to dig over where the STUMPS are, I bet you'd find a MAMMOTH TUSK. I'd give you 1200 GEMS and 2 COINS for it.
Objective
COZYVILLE: Find a MAMMOTH TUSK by DIGGING near the STUMPS. Bring it to RANULF.
Ranulf: I bet you could dig up a MAMMOTH TUSK over by the STUMPS. I'd give you 1200 GEMS and 2 COINS for one.
Progress/Completion Thoughts
Mammoth Tusk: There really is a mammoth tusk! Back to Ranulf!:
Quest Completion Dialogue
Ranulf: You found a real mammoth tusk? I knew it! Just imagine, only a few hundred years ago, this fellow was grazing in my backyard! Oh, right. Here are your GEMS and COINS.