Answer: moraine
Step-by-step explanation:
A moraine is a type of landform feature which is formed by the retreating glacier. It forms a ridge like structure due to the deposition of sediments, stones, pebbles and other materials. The debris are typically sub angular to round in shape. The moraines can be found over the glacier surface as piles of sheets of debris.
On the basis of the above description, moraine is the ridge feature which has been described in the given situation.