List of Collectible Treasures in Paper Mario: The Origami King

In Paper Mario: The Origami King, Mario can discover Collectible Treasures throughout the areas he visits. He can either: Eddy River, Sweetpaper Valley, Scorching Sandpaper West, Scorching Sandpaper Far East, Mushroom Island, Heart Island, Spade Island, Club Island, Scuffle Island, Diamond Island and Hotfoot Crater are the only locations without any Collectible Treasures.
 * perform a task to gain access to a chest containing said treasure
 * recieve them from various NPCs
 * buy them in shops
 * fish them out at the fishing spots

Collectible Treasures count
This chart shows the number of Collectible Treasures for each location, with the total amount at the bottom. Locations are listed the same way as in-game.