A trap set in the path of a noticable entrance or a exit, onto or off of a bank or hut - often with the use of lure.

When using a connibear submerse it at the edge of the bank (where you expect traffic) and use sticks to support it upright and to direct the beaver toward / into your set. Place your Castor lure; Recommend Dobbins "backbreaker" on the bank (recreate a Castor mound using some mud) near the waters edge.