Planning and preparation. A river lined with tall weeds and brush made the Western boundary of the area to be pushed. 80 Acres of open field surrounded by willow brush and bog made the field a natural feeding area. Prior to beginning the drive, one scout walked the perimeter looking for fresh deer sign. Walking at a brisk pace ( Approx. 1 1/2 miles ) on 4 to 6 inches of fresh snow . The area was rectangular. The plan was to begin by the South West corner along the river. The deer would be pushed along the sides of the rectangular shaped area with standers at the corners who would steer the fleeing deer. When the deer were pushed along 3-sides and back to the river they encountered the last stander who pushed the deer North into a funnel along the river where the ground was wet and difficult to travel across. I did not witness this drive but I followed the fresh tracks. This drive was made at night by a pack of Timberwolves.