Friday, July 29, 2011

Esker



An esker is a long narrow ridge or mound of sand, gravel, and boulders deposited by a stream flowing on, within, or beneath a stagnant glacier.

The state forester pointed this feature out as soon as he got out of his vehicle. because of the underlying land forms, this esker is in a U shape, broken up in the middle by erosion due to water runoff from across the road.
The height varies, probably between 20 and 80 feet, and a couple hundred to over a thousand feet wide.