We just learned about the Outlet Glacier.
Another type of glacier is a Valley Glacier.
Sometimes when glaciers melt, the edge of the glacier is by a valley, a low place with a hill on either side.
So when the melted water flows out, the hills and the valley make sure the water flows in one way.
![valley glacier](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7f/Image_Valley_Glacier.svg/618px-Image_Valley_Glacier.svg.png)
(from: wikipedia - glacier morphology)
Kid Facts - Blast from the past: Battery Tower