Lake Carroll lies in the wooded hills above Shannon, all coves and oak shade and driveways that curl down toward the water. Sparrow Lawn Care Lake Carroll keeps those lots mowed and trimmed — the sloped side yards, the narrow strips between trees, the neat rectangle in front of a place its owners may only see on weekends. Shade grass is its own puzzle, thinner and slower than it looks, and it rewards a light hand and a sharp blade. Come back on a still morning and the mowed ground under the oaks looks like a room somebody swept. Work covers Lake Carroll, Shannon and the nearby Carroll County villages.