Four in the morning in north Greeley, and the chalk bluffs beyond town are still only a paler line against the dark. That is the hour Langley's Tree Specialist likes best — headlights on fresh powder, the plow blade finding the seam where a driveway meets the street. Snow on the high plains arrives sideways as often as it falls straight down, and a drive opened at four can be drifted shut again by seven, so the work is patient and repeated. Their snow removal is built for exactly that: plowing, shoveling the walks down to bare concrete, and treating the shaded corners the sun will not reach until noon. What they take pride in is the first footstep of the morning — someone stepping out with a coffee and finding the way already clear.