Castor mound for beaver.Here's an example of a solid producing beaver set.
Top of the first pic shows the left side of the set.
The creek bank here has just a little point sticking out into the creek, that is tangled up with briars, and there's a dead sapling still there to also help channel the beaver on that side of the set.
Bottom right of the pic, there's an old beaver staub, and a rock I placed to help direct the beaver. I've placed a few sticks on the bank as guides as well. My castor mound is in the bottom left of the pic. I don't like to get carried away with guide sticks or fencing, digging a slight indent in the bank as I did here is enough.

Closer view.

Here you can see how slight I dug the bank. To the left is the little briar point. Beaver has to come up my slide, go through the briars, or come from the far right of the set , wich I will get him coming back into the water.

Desired results.