October Mountain rises southeast of Pittsfield, the largest state forest in Massachusetts, and it colors the whole horizon twice a year. Four Seasons Property Services works to that same clock: mowing, trimming and edging while the grass keeps climbing, then plowing, hand-clearing and salting once storms start pushing up the county. The equinox weeks are the busy ones, when the last good cut and the first flurry can land in the same seven days. There is an old satisfaction in getting a property ready before it needs to be. Nothing dramatic about it, just a yard that never catches anyone off guard.