Old Man Thistle's Treasure (quest)

Objectives
Find the cave entrance and recover Old Man Thistle's hidden treasure.
 * Find the cave entrance
 * Find Old Man Thistle's Treasure /

Description
Well high golly! This is turning into a real life treasure hunt!

There's gotta be some kind of entrance or opening to the north, where the mountains meet Cattail Lake.

I'll meet ya at the entrance! Let's go get that treasure!

Completion
The chest's lid slides off with the lightest touch. You peer inside...