March is when Denver gets serious — a foot of wet, heavy snow that bows the crabapples and turns a parking lot into a shallow lake by Thursday. T and K Snow service llc runs the Baker and Santa Fe blocks through storms like that, plowing lots before the shops unlock, stacking piles where the meltwater has somewhere to go, and scraping to pavement instead of leaving a pack behind to freeze. Sidewalks, entryways and loading doors are shoveled and treated so the first person through the door walks in dry. The trucks stay out between passes, because a Front Range storm likes to return for a second half. Then the sun does what it does here, and by the weekend the street is dry again.