In the far northwest corner, Salisbury sits under Mount Riga with lakes scattered at its feet — Wononscopomuc down in Lakeville, the Twin Lakes glittering north of town. Upcountry Services Of Sharon cuts grass in that high country, where the growing season opens a week late and the evening air off the water can carry a chill in July. Lawns here run to slope and ledge, so a good mow means knowing which bank to take on the diagonal and where the ground stays soft after a mountain rain. What's left behind is a yard that looks composed: even height, tidy borders, the lines of the cut following the land instead of fighting it. Grass, hills and water — that's the whole assignment.