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Lost River (New Hampshire) facts for kids

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Lost River
Lost River near Entrance.jpg
Lost River c. 1908
Lost River (New Hampshire) is located in New Hampshire
Lost River (New Hampshire)
Lost River (New Hampshire) is located in the United States
Lost River (New Hampshire)
Country United States
State New Hampshire
County Grafton
Town Woodstock
Physical characteristics
Main source Mount Moosilauke
White Mountain National Forest
2,640 ft (800 m)
44°1′58″N 71°47′58″W / 44.03278°N 71.79944°W / 44.03278; -71.79944
River mouth Moosilauke Brook
Woodstock
980 ft (300 m)
44°1′11″N 71°44′5″W / 44.01972°N 71.73472°W / 44.01972; -71.73472
Length 4.0 mi (6.4 km)
Basin features
Tributaries
  • Right:
    Walker Brook

The Lost River is a small river, about 4 miles (6.4 km) long. It flows through the beautiful White Mountains in New Hampshire, United States. This river is a branch, or tributary, of Moosilauke Brook. It is part of a larger water system called the Pemigewasset River watershed. All its water eventually flows into the Merrimack River.

Where the Lost River Begins

The Lost River starts on the eastern side of Mount Moosilauke. This is a large mountain in the White Mountains. It begins below a peak called Mount Jim. The river then flows towards Kinsman Notch. This notch is a major mountain pass. It cuts through the White Mountains.

The Amazing Lost River Gorge

As the river flows through Kinsman Notch, it enters a special area. This area is known as Lost River Gorge. Here, huge rocks fell from the sides of the notch. This happened at the end of the last Ice Age. These giant boulders now cover the river. They have created a cool network of boulder caves.

The Society for the Protection of New Hampshire Forests owns this gorge. They run it as a fun place for visitors. There are trails and ladders. These help people explore many of the caves. It's a great spot to see how nature can shape the land.

The River's Journey

From Kinsman Notch, the Lost River flows southeast. It meets another stream called Jackman Brook. When these two streams join, they form Moosilauke Brook.

Moosilauke Brook then continues flowing northeast. It passes through a granite canyon. This canyon is called Agassiz Basin. Finally, Moosilauke Brook joins the Pemigewasset River. This happens in the village of North Woodstock.

Following the River

If you want to see the Lost River, you can follow New Hampshire Route 112. This road runs alongside the river. It goes from Kinsman Notch all the way to Moosilauke Brook.

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