I've been looking for an online resource for those that do not have a 'paper' map, atlas, or street altas of Massachusetts.
They are getting rather few and far between. I found this digital map website run by Massachusetts:
https://maps.massgis.digital.mass.gov/MassMapper/MassMapper.html
It is not 100% accurate as far as pond/lake/reservoir names (Example: one pond/reservoir in my town goes by three different names depending on what map or digital map website you are using!) But! It has some really cool features including costal and marine features, water shed features and other ways to research our state water ways. It does not always identify hydro, town well, or treatment sites that are smaller like the ones in my mill-town area, but it does seem to give you a great visual overview of our ponds, lakes, rivers, brooks, canals and shorelines.
Hope this help our prayer warriors that are warring in the Heavenlies from home - God's blessings,
~Amy
Almost forgot! You can print/create a PDF map on the website.