esker
This is another esker. This one is significantly larger than the one near Echo Glacier. This one is about 3 m tall. Eskers typically have sinuos ridge crests. That is hard to see here. But we did observe some layering in the sediments that made us think it was an esker (laid down by water in channels under the glacier) rather than a moraine (rocks pushed by the glacier like a bulldozer).