Salem Sound Watershed Maps
Understand your watershed:
Because everything that enters the drains of our houses or the storm drains on your street eventually makes its way into Salem Sound. That includes items such as household chemicals and waste.
Rain, snow, and groundwater if not evaporated or captured flow downhill into brooks, ponds, lakes, and rivers - eventually ending in estuaries and embayments such as Salem Sound.
USGS Topographic Map of Salem Sound
(click map to enlarge)