Raised Strandlines, West Shore of Hudson Bay, South of Cape Churchill
The image shows part of the west shore of Hudson Bay1 with Thompson Point 2 near the south edge. Uplift since the end of the Ice Age has resulted in a series of strandlines indicating former shore positions. On this image they range up to about 100 feet (30.5 m) above sea level and appear as light-toned linear, north/south trending features 3. Those in the west 4 are higher and older than those further east 5. The light tone indicates sand and gravel at the surface. Near the present shoreline, the strandlines are less distinct 6 and are probably covered by tundra vegetation as this area lies within the shrub-tundra vegetation zone[i].
Inland the land is covered by shrub tundra 7 and there are several large lakes—dark blue in colour and therefore probably deep and without suspended sediment. The largest are NapperLake8, HannahLake9, and MaryLake10. Light-blue lakes, probably shallower and with suspended sediment, can be seen behind 11 and between 12 the strandlines. The course of the White Whale River 13, which drains through a dark blue lake 14 and eventually to Hudson Bay can be observed in the north.