Trap fences

Trap fences are a combination of fences (wooden stakes) and in between a trap pit or trap pit with sharp stakes.

The best place to build is near reindeer marshes.

You cannot dig holes in marshes so you have to build it on the border. It is better there because you can use the trees as a natural obstacles when building a fence line.

A good way to do this is to build an arrowhead like fence situation - so you can herd them into a corner.

Example:                         forest ######0#####0#####0#####0#####0      #     #     # f   0 o  # r   # e  #                           marshland s   0 t   #     #     #     0     #     #     #