The area surrounding the ice blocks are covered with glacial till and when the blocks melt, a depression is left behind that is often filled with water to form a lake.
(The area; surrounding; the ice blocks) (The area surrounding the ice blocks; are covered; with glacial till) (the blocks; melt; ) (a depression; is left; behind; T:when the blocks melt) (that; is filled; with water; to form a lake; T:often)
The area The area surrounding the ice blocks the blocks a depression that
surrounding are covered melt is left is filled
the ice blocks
with glacial till
behind T:when the blocks melt
with water to form a lake T:often