Here's a tip/trick . Hard work but it works so well . Gather wild game , hides , guts , bones and freezer burned meat . Black bear is so good . Go to an area that predators , mainly wolves inhabit . Dig a hole about 2.5 to 3 feet in diameter by 5 feet deep . Dump your bait in , a couple of feet thick in the bottom of the hole . Cut a tree to fence post size and put it in the center of the hole with the butt end resting on chunks of bear , beavers and what ever . Now back fill the hole tamping the dirt down tight leaving the post in . Chop a few trees to act like guides to channel animals to the post . Do this in the summer giving the bait a few months to fester down there . When the ground is frozen in the late fall and trapping season is on take your hi-lift jack to the site and jack the post out . Set your snares and traps among the guide trees you cut down . As soon as you pull the post out , you'll smell it and it doesn't matter if it fills with snow as the smell will keep on coming . Wolves love to dig bears out of their dens in the winter to kill and eat them and you just manufactured the best smelling bear den on the planet . The wolves will just keep on coming as will coyotes and fox all winter long . In the spring the ground thaws and the hole collapses . Make another one . I know guys who will take 15 or 20 wolves off just one of these sites in a season and if you have a few sites ... Ravens can smell it but can't get to it and they'll make a big fuss and wolves will smell it for miles .