Geological ridges

Usage examples of eskers.

They were riding in pure sand and the horses labored so hugely that the men were obliged to dismount and lead them, toiling up steep eskers where the wind blew the white pumice from the crests like the spume from sea swells and the sand was scalloped and fraily shaped and nothing else was there save random polished bones.

Halak saw that the valley was really a couloir, surrounded by eskers and moraines—rocks and boulders pushed into piles by a glacier as it had advanced and then retreated.

Every foot of the landscape from here on north would be scored and scarred with reminders of glaciation—scattered boulders called erratics, drumlins, eskers, high tarns, cirques.

Every foot of the landscape from here on north would be scored and scarred with reminders of glaciation-- scattered boulders called erratics, drumlins, eskers, high tarns, cirques.