The Connecticut Lakes are a group of lakes 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...

, situated along the headwaters of the 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...

. They are accessed via the northernmost segment of U.S. Route 3

U.S. Route 3

U.S. Route 3 is a north–south United States highway that runs from its southern terminus in Cambridge, Massachusetts through New Hampshire to its terminus near Third Connecticut Lake at the Canadian border, where the road continues north as Quebec Route 257.In New Hampshire parts of US 3 are...

 (between Pittsburg

Pittsburg, New Hampshire

Pittsburg is a town in Coos County, New Hampshire, United States. The population was 869 at the 2010 census. It is the northernmost town in New Hampshire and the largest town by area in the state - and in New England as well - more than twice the size of the next largest town, Lincoln. U.S...

 and the Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 port of entry south of Chartierville, Quebec

Chartierville, Quebec

Chartierville is a small village of 300 people in Le Haut-Saint-François Regional County Municipality, in Quebec, Canada.Chartierville is located Route 257 South. Prior to its founding in 1870 by colonists from Saint-Hyacinthe, gold-seekers flocked to the area...

). The lakes are located within the boundaries of Pittsburg, but are far from the town center. Connecticut Lakes State Forest adjoins them.

There are four lakes: First Connecticut Lake

First Connecticut Lake

First Connecticut Lake is located in Coos County in northern New Hampshire, in the town of Pittsburg. At , it is the eighth-largest lake located entirely in New Hampshire. It is the lowest of a chain of lakes near the headwaters of the Connecticut River....

, Second

Second Connecticut Lake

Second Connecticut Lake is an water body located in Coos County in northern New Hampshire, in the town of Pittsburg. It is one of a chain of lakes near the headwaters of the Connecticut River....

, Third

Third Connecticut Lake

Third Connecticut Lake is a water body located in Coos County in northern New Hampshire, in the town of Pittsburg, less than one mile from the Canadian border. The lake is the third in a chain of lakes marking the headwaters of the Connecticut River. It is approximately 100 ft deep at its...

 and Fourth Connecticut Lake

Fourth Connecticut Lake

The Fourth Connecticut Lake is the northernmost, smallest and most remote of the Connecticut Lakes in New Hampshire, United States of America. It is the source of the Connecticut River. The Fourth Connecticut Lake Trail, which criss-crosses the international border between the United States and...

. First Connecticut Lake is the largest. Fourth is the smallest, northernmost, and the source of the Connecticut River. The only access to this lake is via the Fourth Connecticut Lake Trail

Fourth Connecticut Lake Trail

Fourth Connecticut Lake Trail is a public trail maintained by the that criss-crosses the international border between the United States and Canada for and ends in a loop around the Fourth Connecticut Lake in the United States. The Fourth Connecticut Lake Trail is one of the few international...

, which goes in and out of Canada. All lakes are north of the 45th parallel.