Road to start of aqueduct, follow it crossing several roads (gaps in south side of trail fence) till hit Water St, follow to Hemenway School and take right on Bruce Freeman trail. Keep going until hit route 20. Head east a couple of miles until Russell Nursery. Cross street and pick up old train tracks just north and head east.
Wellesley Farms train station (can start in other places - if have car start at when first hit aqueduct on Buckskin Drive)
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