Mountain Temple - Treasure Map

In the area at the top of the rope ladder there's an ancient staircase leading up the hill alongside the building. Below and to the left of the staircase is a white ledge overlooking a stream.

Drop down, wade across the stream and go through the narrow crack in the rock wall into a cave.

Here you'll find the Treasure Map for this area. There's also a salvage net, but you can't use it yet because there's no way to light your torch in here. You can return for it later, once you've unlocked a certain item