Sellars Gulch threads its small green seam behind downtown, and on a Saturday in Festival Park the whole town seems to be outdoors at once. Castle Rock Lawn Care tends the yards those families go home to — mowing on a steady rotation, edging along drives and paths, trimming where the mower cannot follow, and clearing debris so the lawn reads as one unbroken surface. Carrying the town's name is a fair amount to live up to, and the answer is simply never skipping a step. High-plains grass grows on purpose here, never by accident. It shows from the curb.