When fishing how do you find the depth of water?

Question

i know you use a plumet but what do you do with it? :S

Answer 1

hm..well have you tried a map?

Answer 2

I don't know what a plumet is. But I do know that a nautical chart available at marinas and marine supply stores chart the depths. That and knowing the tide should help you determine the depths in your particular area.