After tuning a fish tracking antenna on Oksrukuyik Creek, we flew over the Kuparuk River on our way to the I-Minus outlet stream, visiting all three study rivers in one day. While our tagged fish have remained corralled in overwintering habitats by layers of ice and snow, we have successfully installed and tuned fish tracking antennas along all three river systems to better understand how river connectivity and habitat fragmentation influence fish movement patterns. Before fish movement occurs, however, these rivers must thaw. Pooling water on the Kuparuk River indicates snow melt from the surrounding hill slopes. As white snow gives way to underlying brown tundra, changing albedo alters the balance of reflected to absorbed heat and the tundra thaws even more rapidly. If warm conditions prevail, winter will soon give way to spring, ushering along the Arctic grayling annual spawning migration.