The Sunken Forests of New Hampshire are two large areas of tree stumps submerged off New Hampshire's coast. They sank below sea level after the ending of the Wisconsin Glaciation and subsequent rise in temperature; isostatic rebound has not kept pace with the rise in sea level, and former coastal forests were overtaken by the Atlantic Ocean. The trees could not thrive, even when they were in the early stages of sinking, because they cannot live in salt water for very long. All that is left of the forests are stumps.