This layer contains five confirmed canals and ten features that may, or may not, be canals as well. The five confirmed canals include the Mariinskoi, Berezinskoi, Ivanovskoi (pictured in the accompanying map), Oginskoi, and Ladoga canals. Together they total 235.78 kilometers (the Ladoga canal is by far the longest, coming in at over 101 km).
