Without human interference, a large proportion of those that cross the lower part of Little River would doubtless proceed more or less directly to Windy River and cross near its mouth. But the human and canine inhabitants of the Windy River post seem to exert a strong influence in deflecting the Caribou northwestward along several more or less parallel ridges that rise to a maximum height of 40 or 50 feet. These are Little River, Middle, and Camp ridges (map 1). Many animals follow the first of these to its northwestern end, then cross a bog and ascend the Middle Ridge. Some cross the southeastern end of Little River Ridge, scramble down its steep sides by strongly marked trails (fig. 2), and then move across the Eastern Bog to the Middle Ridge. But when they reach the summit, they can see the post directly ahead, and generally hurry off northwestward along the ridge. Presently some may cross the Camp Slough (fig. 13) to the Camp Ridge and then proceed either westward or northwestward. The Caribou have a strong predilection for following the treeless summits of the ridges wherever they are available and extend in a more or less desirable direction. On reaching the vicinity of the Bear Slough, where the three ridges are interrupted or peter out, the animals doubtless turn more or less southwestward to make a passage of Windy River at various points above its mouth. Under the conditions outlined above, it is obvious that some of the finest opportunities for close-range observation and photography lie at the two well-established crossings near the mouth of Little River.