The study used GPS radio collars to track 227 juvenile does across four wildlife management units in Pennsylvania. Out of that group, half traveled several miles beyond their home ranges, 27 of which permanently dispersed. The movements occurred over two days in the spring during fawning season, when the deer turned one years old. Though bucks typically travel five to seven miles before settling down, the dispersed does followed no discernable pattern. One traveled 160 miles in 55 days, crossing and re-crossing an interstate, and swimming three major rivers, before it ultimately settled down only 20 miles from its original home.