Chapter XII - Secrets Call of Juarez: BiB Guide

The first secret is near the place where you will start this chapter, in an open basket.

Very similar explanation describes the location of the second secret so that is why I've prepared a map. You will find it in "Walkthrough" subsection.

The third one is hidden in the basket next to the wigwam which is near to the totem (at the edge of the ledge where the wagon with the heavy machine gun will arrive).

The last but one item is located also next the wigwam, but not in the middle of the battlefield. You will get there a bit later. It is hidden nearby the beginning of the mountainous path.

The last one is nearby the previous one. It is located under the wooden construction with the dead body on top.