Interesting. Here is the Georgia Law FAQ from the GA DNR site. Thank goodness my streams start on my property. WOW!

GA DNR FAQ
Do I need a fishing license to fish in a private pond?
If the pond is wholly enclosed on a persons private land (that is, no ingress or egress from beyond the lands borders), no. However, if the pond is fed from waters coming in from outside the land borders, a license is required


2.5 Acre Pond
Status: Design