2 Loot Treasures
Treasure 1 is at some small farm buildings in the south.
Treasure 2 is at the top of the main building
For the silos:
There is one to the left and one to the right of the main Farm Building in the North East of the Farm
One is in the south of the farm symbol
One is the center, where the buildings are.
You don't need fire arrows. You can hit them with the torch a couple of times.