A snow plow for attachment to a vehicle, the snow plow including a mounting apparatus having a mounting frame, the mounting frame including at least one mounting upright. The snow plow further including a plow blade including a retention apparatus constructed and arranged to slidlingly and disengageably secure the plow blade to the mounting upright(s) when the plow blade is in a working orientation. The plow blade includes a mold board, the mold board preferably being an aluminum extrusion. The aluminum extrusion will preferably include at least one attachment channel, more preferably a plurality of attachment channels, in which parts of the snow blade can be secured or anchored. The plow blade preferably includes first and second attachment channels and the retention apparatus preferably includes at least one retention member anchored in at least one of the attachment channels.