New Hampshire Route 142 (abbreviated NH 142) is a 19.71 miles (31.7 km) long north–south state highway

State highway

State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...

 in northern New Hampshire

New Hampshire

New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...

. The highway runs between Franconia

Franconia, New Hampshire

Franconia is a town in Grafton County, New Hampshire, United States. The population was 1,104 at the 2010 census. Set in the White Mountains, Franconia is home to the northern half of Franconia Notch State Park. Parts of the White Mountain National Forest are in the eastern and southern portions...

 in the White Mountains Region

White Mountains Region

The White Mountains Region is a tourism region designated by the New Hampshire Division of Travel and Tourism. It is located in northern New Hampshire in the United States and is named for the White Mountains, which cover most of the region. The southern boundary of the region begins at Piermont...

 to Dalton

Dalton, New Hampshire

Dalton is a town in Coos County, New Hampshire, United States. The population was 979 at the 2010 census. It is part of the Berlin, NH–VT Micropolitan Statistical Area.- History :...

 in the upper Connecticut River

Connecticut River

The Connecticut River is the largest and longest river in New England, and also an American Heritage River. It flows roughly south, starting from the Fourth Connecticut Lake in New Hampshire. After flowing through the remaining Connecticut Lakes and Lake Francis, it defines the border between the...

 valley.

The southern terminus of NH 142 is at the junction with New Hampshire Route 18

New Hampshire Route 18

New Hampshire Route 18 is a long north–south state highway in New Hampshire. Its northern terminus is at the Vermont state line in the town of Littleton, where the road continues north as Vermont Route 18. The southern terminus of NH 18 is at an interchange with Interstate 93 and U.S...

 in Franconia. The highway winds north through Bethlehem

Bethlehem, New Hampshire

Bethlehem is a hillside town in Grafton County, New Hampshire, United States. The population was 2,526 at the 2010 census. It is home to Cushman and Strawberry Hill state forests. The eastern half of the town is within the White Mountain National Forest...

 and Whitefield

Whitefield, New Hampshire

Whitefield is a town in Coos County, New Hampshire, USA, in the White Mountains Region. The population was 2,306 at the 2010 census. Situated on the northern edge of the White Mountains, Whitefield is home to the Mount Washington Regional Airport and the White Mountains Regional High...

, then turns northwest to Dalton. NH 142 runs concurrent

Concurrency (road)

A concurrency, overlap, or coincidence in a road network is an instance of one physical road bearing two or more different highway, motorway, or other route numbers...

 with New Hampshire Route 116

New Hampshire Route 116

New Hampshire Route 116 is a long east–west highway in northern New Hampshire. NH 116 is a scenic rural highway stretching from Haverhill, which lies along the Connecticut River, to Jefferson, in the White Mountains Region....

 for a distance of 3.6 miles (5.8 km) between Bethlehem and Whitefield. The northern terminus is in Dalton at New Hampshire Route 135

New Hampshire Route 135

New Hampshire Route 135 is a long north–south state highway in New Hampshire. The highway runs north along the Connecticut River from Woodsville to Lancaster....

, the Connecticut River Road.