Maps

Any body know of a good site that has batheymetric maps of lakes and ponds in Mass? or depth countor maps (i think there the same thing though)

http://www.mass.gov/dfwele/dfw/habitat/maps/ponds/pond_maps.htm

this site has a bunch of topo maps, not sure about bathymetric maps. they're pretty basic, but give you a good idea of a good amount of local waters.