1. The vertical crag is at the head of a medial moraine . 2. Features observed during the active or surge phase include potholes, known as lacunas and medial moraines . 3. Medial moraines are formed when the lateral moraines of two glaciers are combined when they flow together.4. This medial moraine is collected from the ice of three large ice fields, which all run together. 5. Till is the material that makes up ground, lateral and ( not always present ) medial moraines . 6. The lowest part of the great Aletsch Glacier is largely covered with detritus of the lateral and medial moraines . 7. A medial moraine can be seen at the interface of the eastern and western arms of the Crater Glacier. 8. "' Swithinbank Moraine "'( ) is a spectacular medial moraine in the Shackleton Glacier. 9. It has been debated what kind of landform it should be, suggestions ranging from medial moraines to mega-flutes. 10. The westernmost medial moraine has been named the " ", and the easternmost carries the name " ".
