Mornings in Airville often start under river fog, the Susquehanna breathing white up out of its gorge until the ridge farms seem to float above it. Double "M" Lawn Care LLC gets going once that burns off — mowing the long open yards of southern York County, trimming around barn posts and porch rails, edging drives back to their true width, clearing leaves when the woods above Muddy Creek let go in October. Country lots run big here, and a big lot rewards a straight first pass more than anything else. There is real pleasure in standing at the road afterward and seeing the whole thing read as one sweep of green. That is the job: land that looks looked-after, from the mailbox all the way back.