VNC symbols to explain
 

Quick question to fellow Canadians what do these symbols on VNC mean? Nothing visible on satellite image.

It's actually shown as an Esker on the CFS. The single row of triangles would be the cliff or depression, two rows like this is an Esker.

Thanks. Learn something every day. When I was visiting with Greg at BC this past summer I flew over similar symbols and wasn't able to see anything on the ground. Eskers then... :)