The old medallion seems to point to the location of the froglok village in the Feerrott. Without a doubt, this village has been well hidden if no one has been able to find it in the past age. The markings show a stone with a portal above it.
Seek out the area in the Feerrott where the portal stone is sequestered. Indications on the medallion point to somewhere in the southernmost reaches of the jungle.
Search out the portal stone in the southern reaches of the Feerrott.
Place the ancient froglok talisman against the stone to open the portal.
Place the talisman against the portal stone and reveal the way into the village.
Quest Rewards above are only the guaranteed XP, faction, and coin rewarded for this quest. Status points and rewards limited by class, race, alignment, etc. are unavailable.