Mac, its all in the advertisement...
Get yourself a mesh laundry sack, and fill it full of sardines and talapia fish from the grocery store. Drench the sack in liquid smoke also. Hang it in a sapling to get the stink out in the air.
Next, get you some kitchen grease and pour it around the bait, I use 30-40 gallons.
When the bears come in because of the odor, they will walk through the grease and track it off for others to trail it in....
For more in depth tactics, check out the magazine link on my website. Gage gives some awesome tips!!!
www.elkcrazyoutdoors.com