Bill - Thank you very much (once again) for taking the time to share your expert knowledge!!! My ice is about 4.5" thick and very clear, as is the water. We have been very very dry, so the pond is down over a foot and has not run through the overflow in over 4 months. We are very cold (down to -4 this morning with a predicted high of 6 F). We have about 8" of fluffy snow on the ice. I will let the neighbor (who asked to clear some patches) what you said. He fishes the ponds more than anyone else (harvests what I ask him to and releases the rest). This is exactly the type of info I was hoping for! Thank you!!! I appreciate input from Rod and Jim as well. Stay warm.