Beneath the ground moraine, remnants of three sheets of lodgement till are preserved locally. This moraine was constructed at the glacier margin in the latest 1800s and early 1900s. It consists of bouldery, poorly sorted sediment deposited at the ice margin. The push moraine was constructed during glacier advance around 1800. Notice shallow source depressions to left.
Flutes consist of slightly higher, more stony stripes a few m in width.
Here, a flute begins at the boulder and continues several 100 m into the distance, and many parallel flutes can be seen. Ice axe for scale. The present ice margin has been more or less stable in position since the mid-1980s. During the summer the ice margin melts back and sediment is released. Over a period of several years, a marginal moraine has accumulated.