The creeks of North East Township cut down through shale into cool green gorges, and in spring the water runs loud enough to hear from the yard. Natures Edge Lawncare opens the season on those properties — first mows, trimming back what winter left along the banks and fence lines, edging the walks, clearing out the branches the storms brought down. Where lawn meets ravine the boundary has to be kept on purpose, or the woods will quietly take it. A tidy edge against a wild slope is a satisfying thing to stand and look at. Then it is on to the next one.