There is a moment on 104th Avenue after a night storm when the sun lifts off the plains and every unbroken field of snow turns gold for about four minutes. Dorado Solutions LLC has usually been working for hours by then, which is the price of getting to see it. Plowing driveways and lots, clearing walkways down to bare concrete, spreading ice melt on the shaded strip by the garage where runoff likes to refreeze. Snow rarely lingers around here — the sun is strong and the air is dry — but it can lock down a whole morning if nobody moves it. Move it early and the day just opens up.