Columbus sits inside Polk County's thermal belt, that odd warm shelf on the mountainside where cold air slides past below and frost skips whole slopes on nights the valley floor freezes hard. First Impressions Landscaping LLC works both sides of that quirk — mowing, edging and trimming through a growing season the belt stretches at either end, then plowing drives and salting walks when a storm comes over White Oak Mountain and reaches the ridges anyway. The foothills here fold and rise, so yards run uphill and drives run steep, and both ask a little more care than flat ground does. A drive opened in a January dawn and a lawn cut level on a June evening come out of the same habit of finishing the job. Serving Columbus, Tryon, Saluda, Mill Spring and Lynn.