The afternoon I first showed up at Twin Oaks, late December of 2000, I took a walk on the frozen-solid South Anna River. I figured that that was typical for that time of year. As it turns out, the river has only frozen solid enough to walk on a few times in the 12 years since then. This morning, on a day that eventually reached the balmy temperature of 40 degrees, the river was about as frozen as it is likely to get this year. Frosty, but not even close to having enough ice to walk on.