Boreas Pass Road wakes under a headlamp beam long before the lifts turn. AAA Reliable Services runs snow plowing, driveway and walkway clearing, shoveling and ice management for Breckenridge homes that sit high on the shoulder of the Tenmile Range. Up here a night can lay down a foot without making much noise, and the work is to make that disappear before the first car door opens. Blades pass, shovels finish the corners, and sand goes down where the grade tips toward the pines. The reward is small and complete: a black driveway, clean to the pavement, steaming faintly in the first gray light.