Notice that X is located in a valley located slightly higher than the main valley into which the ice and meltwater are spilling. Therefore, when the ice fully melts, a hanging valley (D) will be left behind with a possible waterfall leading down into the main valley.

A kettle lake (A) forms in a hollow left behind by a chunk of ice that slowly melted in an outwash plain.

A crag and tail (B) is a larger rock mass than a roche moutonnee. Like a roche moutonnee, it is formed from a section of rock that was more resistant than its surroundings. On the lee side of the resistant rock, the bed rock was protected from the erosional power of the glacier.

A truncated spur (C) is a triangular face on the vertical walls of the U-shaped valley.