Follow the Kalamazoo River Valley Trail north past Mosel, where the path runs between the water and the tree line, and you can watch the year change hands twice. Kalamazoo Snow & Grounds keeps grounds on both sides of that handoff — mowing, trimming and edging while everything is green and stubborn, plowing, shoveling and salting once the ground goes hard. Grounds work is really one idea in two costumes: keep the ways open, keep the edges honest, leave nothing half-finished. This town doesn't ease into either season; it simply arrives one morning. The trucks get loaded for whichever one showed up.