Treasure Location [Hinterlands] - "Map to a Waterfall"
This treasure location is near the Templar camp to the left of the broken bridge near the Upper Lake Camp. You'll need to head to the back of the Templar encampment to find the path that leads directly to the waterfall. Before you reach the treasure there will be several veins of iron ore for you to collect. Towards the back of the waterfall use your "sonar" ability to reveal the treasure buried under sand.