March in Castle Rock is a heap of last year — oak leaf, blown grit, broken stems, the whole mat the snow pressed down. Clean Slate Ltd. hauls it away. Yards get raked out, edges reopened, borders cut back, and a first mow laid down so the season starts from zero instead of from a mess. From the paths on Ridgeline Open Space you can watch the town return in patches, one property at a time. Clear the ground first; everything after that is upkeep.