I went ice fishing at Wildhorse Res. in Northern NV last Monday, and the ice was about 2 ft thick. The weather has been even colder up there since then, and last night it got down to 30 below zero. It is supposed to get that cold for the rest of this week. I was talking to a friend at work, and we are betting the ice is about 3 ft thick right now, or close to it. My auger will only go to about that depth. He heard somewhere that ice will only go to a certain thickness. Has anybody heard of this before? We are thinking that it could be true, for a couple reasons, like the ice being too thick for cold air to penetrate, thermal layers, etc. What are your guy's thoughts on this subject? Have any of you run into ice that is thicker than this? Just curious because I am planning to go up there again this weekend.