The northern lowlands are parts of glacial deposition, and, accordingly, their surface area is diversified by these capabilities since the Valdai Hills of western Russia; by deposits of boulder clay, sands, and gravels; by glacial lakes; and via the Pripet Marshes, a big ill-drained region of Belarus and Ukraine. A https://andersonainvz.wikicommunication.com/5430489/europe_an_overview