I live in Concord.

I like to run/walk/bike a trail which isn’t on the map yet and put it on. It is nowadays getting harder to find them!

(I used to live in Lexington where there are long car-free trails if you know how to connect the small bits, so I started using OSM as a way to track them. I also did a little volunteer trail work in Lexington on the Western Greenway in Waltham.)

I also leaned on Chris Schmidt to put the MassGIS OPENSAPCE layer into OSM – but have not persuaded him yet (2010-11) to import the water layer.