The old canal towpath runs the length of the Lackawaxen valley, ferns crowding the edge, hemlock shade holding cool air right through July. Allure Lawn and Landscape mows in that green corridor — riverside camps, clearings cut back to a tidy border, trimming where lawn meets the stone of a wall laid by somebody's great-grandfather. Grass comes on fast in the damp of the valley, so the schedule matters more than the horsepower. A yard finished in the afternoon, striped and edged with the river sound coming through the trees, is a fine thing to walk away from. Lawn care for the hollows and the high clearings alike.