Lake Ponemah gives Linden a great deal of sky, and the sky is where the season shows first — flat pewter in November, high and hard blue over the ice come January. Lake Sky Landscaping reads both halves of that: plowing and clearing drives and walkways when the snow arrives out of the west, then mowing, trimming and cleanups once the shoreline lots go green again. Lakeside yards run to slope and sand and short grass, and they ask for a lighter, more frequent hand. Whatever the month, the aim holds steady — a property that looks looked-after from the water and from the road alike.