This elevation map of New Hampshire illustrates the number of feet or meters the state rises above sea level. As you can see, elevations in New Hampshire vary from sea level at the Atlantic Ocean to 6,288 above sea level at the top of Mount Washington in the north central part of the state. Mount Washington is the highest point in New Hampshire and the highest point in the northeast at 6,288 feet above sea level. It's located in the Presidential Range of the White Mountains.