My man-made body of water is about 2 acres. I live in the western North Carolina mountains, and have struggled with the issue for calling my BOW a lake or a pond. Somehow I thought it was classier to have a lake rather than a pond, but 2 acres just isn't enough by the standards listed in this thread to make mine a lake. So I have decided to call my BOW a TARN - which is a fancy literary word, I learned today, for "a small mountain lake."
tomte