See http://www.doverlandtrust.org/wp-content/uploads/2019/05/DOVER-MAP-2019.pdf
corrected outline based on maps
lot sold and buildings demolished
business closed and building demolished
https://thetrustees.org/wp-content/uploads/2020/07/SwiftRiver_TrailMap_2018.pdf
https://thetrustees.org/wp-content/uploads/2020/07/SwiftRiver_TrailMap_2018.pdf
https://thetrustees.org/wp-content/uploads/2020/07/SwiftRiver_TrailMap_2018.pdf
https://thetrustees.org/wp-content/uploads/2020/07/SwiftRiver_TrailMap_2018.pdf
https://thetrustees.org/wp-content/uploads/2020/07/SwiftRiver_TrailMap_2018.pdf
https://thetrustees.org/wp-content/uploads/2020/07/SwiftRiver_TrailMap_2018.pdf
first draft of https://thetrustees.org/wp-content/uploads/2020/07/SwiftRiver_TrailMap_2018.pdf
https://www.massaudubon.org/content/download/8039/145128/file/Great-Neck-trail-map_2020.pdf
Closed in 2019: https://www.facebook.com/sacredheartsretreatcenter/
https://www.massaudubon.org/content/download/8039/145128/file/Great-Neck-trail-map_2020.pdf
https://www.massaudubon.org/content/download/8039/145128/file/Great-Neck-trail-map_2020.pdf
https://www.massaudubon.org/content/download/8039/145128/file/Great-Neck-trail-map_2020.pdf