The Mahoosuc Range, a northern extension of the
White Mountains, straddles the border between
New Hampshire
New Hampshire is a state in the New England region of the northeastern United States. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec to the nor ...
and
Maine
Maine () is a U.S. state, state in the New England and Northeastern United States, Northeastern regions of the United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Provinces and territories of Canad ...
. The range's highest peak,
Old Speck Mountain
Old Speck Mountain, also known as Old Speckle Mountain, is a mountain located in Oxford County, Maine, United States. The mountain, the fourth-highest in the state, is the northeasternmost and highest of the Mahoosuc Range, the northeasternmos ...
, is the fourth-highest peak in Maine. Substantial parts of the range are publicly owned as parts of the
National Park Service
The National Park Service (NPS) is an List of federal agencies in the United States, agency of the Federal government of the United States, United States federal government within the United States Department of the Interior, U.S. Department of ...
Appalachian Trail
The Appalachian Trail (also called the A.T.), is a hiking trail in the Eastern United States, extending almost between Springer Mountain in Georgia and Mount Katahdin in Maine, and passing through 14 states.Gailey, Chris (2006)"Appalachian ...
corridor and
Grafton Notch State Park
Grafton Notch State Park is a public recreation area in Grafton Township, Oxford County, Maine. The state park occupies surrounding Grafton Notch, the mountain pass between Old Speck Mountain and Baldpate Mountain. The park is abutted by the ...
in Maine.
The Appalachian Trail traverses the main ridge of the Mahoosucs between
Shelburne, New Hampshire
Shelburne is a town in Coös County, New Hampshire, United States. The population was 353 at the 2020 census. It is located in the White Mountains, and part of the White Mountain National Forest is in the south. Shelburne is home to Leadmine Stat ...
and
Grafton Notch
Grafton Notch is a notch, or mountain pass, located in Oxford County, Maine. The notch demarks the northeastern end of the Mahoosuc Range, and thus of the White Mountains. Maine State Route 26