Glaciation: it refers to the overall effect of glaciers on the landscape resulting into both erosional and depositional features
Glacier is a thick/large mass of ice of limited width, moving from the area of accumulation (snow field) following pre-existing valleys due to gravity. Or Glacier is an accumulated/compacted mass of ice/snow moving in a restricted channel/valley from a highland to a low land. Glaciers have different names for example mountain glaciers and valley glaciers/alpine glacier. Glaciers move continuously from higher ground to lower ground under the influence of gravity and are enclosed within the valley walls.
The action of glacier includes glacier erosion, transportation and deposition. These processes will lead to the formation of glacier scenery. Glaciers in East Africa are only found in high mountainous areas of Kenya, Kilimanjaro and Rwenzori. This is mainly because those mountains (Kenya, Kilimanjaro and Rwenzori) are high above the snow line (4500m).
In East Africa glacial activities are limited to a few places, this is due to a number of factors that limit the formation of snow and this include: