How do springs originate at the top of the hills and how do they acquire such volume of water?

Question

One explanation that I found was rainfall but it is not apparent that rainfall could contribute to such volume of water.

In: Geology

Answer 1

Not springs, but many ponds on top of hills could be kettle ponds or kettle holes. These were formed by retreating glaciers. Big pieces of ice would be left behind and form a pothole, and then sometimes form a lake, pond and even other types of wetlands.