http://earth.google.com/

Its a satelite imagry database that allows you to find any location from outter space.(In my case a body of water) It shows you where the rivers and creeks get fat and deep or skinny and shallow...hidden back areas to fish or even what your house looks like from 3 miles in the sky.

You have to download the free version in the upper right hand corner of the screen and install it, but it is for sure worth it.