Out toward Cayuga Island the streets narrow and the river runs black past the backyards, and that is where a storm shows its patience — three inches an hour, all night, no hurry. RGS Snow Removal keeps its truck moving through those hours, plowing residential drives and commercial lots while most of the city sleeps. Salt goes down at the foot of every slope and across the walks, because in this corner of Niagara Falls the melt and the freeze trade places twice a day. It is unglamorous work and it is the whole difference between a morning that happens and a morning that doesn't. Come daylight there is nothing to see but clear pavement, which is exactly the point.