You could always focus more on the land management side of the problem and create a more easily traveled trail across your property. Looking at it from a deers standpoint try to map out a good trail running in the direction that the deer naturally move. Look at topographical features of the property that will keep the deer hidden as they pass across your property. You can compress most if not all of the trails in that area down to one. Once this is completed and a good transition area is made find a spot where the deer can see for several yards and put your corn pile there. Deer like to be able to see as they are feeding. If you do a little "landscaping" and keep your corn out consistently you should have better success.