The Pembina and Tiger Hills are good examples of end moraines. End or terminal moraines are formed at the leading or retreating edge of a glacier. The glacier acts as a conveyor belt depositing debris from the top of the glacier before it. The size of the end moraine is dependent on whether the glacier is advancing, retreating or stationary. The longer a glacier stays in one place, the higher the pile of debris will be.
As a glacier melts, it forms a fast moving glacial river which carries a lot of sand, silt and other debris suspended in it. A delta, like this one, is formed when the river meets another body of water causing the forward motion of the river to slow and allowing the particles carried by the river to precipitate and drop to the bottom. The size of the delta depends on the size of the river and the amount of debris that was suspended in it.
To claim this earth cache you must answer the following questions and e-mail the answers to me (MHz):
1. How many years ago was the Assiniboine Delta formed?
2. How many square kilometers does this delta cover?
3. What is the name on the outdoor stone stove at N49 21.725 W098 35.321?
4. Please take a picture of yourself with your favorite critter at N49 21.776 W098 35.287 and post it on this cache page.
Congratulations ertyu on being FTF!
