Before the stores open at Clifton Park Center the lots have to be black and the walks have to be bare, and that work happens somewhere between two and six in the morning. Liberty Snow Removal NY runs those hours: plowing lots and driveways, stacking banks where they will not block a sight line, shoveling entries, treating the tread-packed ice a Capital Region freeze-thaw leaves behind. An ice storm here can lay down a quarter inch of glaze without a single flake, and that night calls for a different plan than a nor'easter does. The measure of a storm handled well is that nobody notices it by daylight. Clifton Park, Halfmoon, Waterford, Mechanicville and Malta.