East of the city the Winooski River swings through the Intervale bottomland, and the soil it left behind grows grass with real enthusiasm. Callahan Landscaping LLC works with that abundance rather than against it: mowing on the rhythm the river valley sets, trimming, edging, mulching beds, and hauling off the spring and autumn debris. June down here can mean a cut every few days, and the truck shows up for it. There is a particular pleasure in a lawn that has been kept ahead of — thick, level, no clumps left sitting. When the river fog burns off around nine, the finished yards look like they were poured.