What are recessional moraines?

A recessional moraine is like a pile of rocks and dirt that forms when a glacier takes a little break during its long journey.

Imagine you're pushing a heavy shopping cart full of groceries through the grocery store. You take one step, then another, but sometimes you pause to catch your breath. That’s what a glacier does, it moves forward, but sometimes it stops for a while.

When that happens, the moraine, which is like the pile of stuff left behind when the glacier moves, gets smaller and more spread out. It's like when you drop some groceries on the floor and then take a break before continuing your shopping trip.

Glaciers are big, slow-moving rivers of ice. As they move, they carry rocks and dirt with them. When the glacier slows down or stops for a while, those rocks and dirt fall out of the ice and pile up, creating a recessional moraine.

It's like when you're playing with your toys and you stop to take a snack break, the toys that fall off your hands during the break are like the rocks and dirt in a recessional moraine.