Geography

Here you can find detail information about geography:
http://en.wikipedia.org/wiki/Geography_of_Massachusetts

Visiting these sites:
http://www.factmonster.com/ce6/us/A0859527.html
http://www.city-data.com/states/Massachusetts-Climate.html
http://www.netstate.com/states/geography/ma_geography.htm
http://geography.howstuffworks.com/united-states/geography-of-massachusetts.htm
you'll find out information about humid continental climate and basic facts, such as total area, highest and lowest point, major rivers and lakes.