Folda or Folla is a firth

Firth

Firth is the word in the Lowland Scots language and in English used to denote various coastal waters in Scotland and England. In mainland Scotland it is used to describe a large sea bay, or even a strait. In the Northern Isles it more usually refers to a smaller inlet...

 and a fjord

Fjord

Geologically, a fjord is a long, narrow inlet with steep sides or cliffs, created in a valley carved by glacial activity.-Formation:A fjord is formed when a glacier cuts a U-shaped valley by abrasion of the surrounding bedrock. Glacial melting is accompanied by rebound of Earth's crust as the ice...

 in Nord-Trøndelag

Nord-Trøndelag

is a county constituting the northern part of Trøndelag in Norway. As of 2010, the county had 131,555 inhabitants, making it the country's fourth-least populated county. The largest municipalities are Stjørdal, Steinkjer—the county seat, Levanger, Namsos and Verdal, all with between 21,000 and...

 county, Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

, within the municipalities of Flatanger

Flatanger

Flatanger is a municipality in Nord-Trøndelag county, Norway. It is part of the Namdalen region. The administrative centre of the municipality is the village of Lauvsnes. Other villages include Jøssund and Vik.-General information:...

, Namsos

Namsos

is a town and municipality in Nord-Trøndelag county, Norway. It is part of the Namdalen region. The administrative centre of the municipality is the town of Namsos. Other villages in the municipality include Bangsund, Klinga, Ramsvika, Skomsvoll, and Spillum....

, Fosnes

Fosnes

Fosnes is a municipality in Nord-Trøndelag county, Norway. It is part of the Namdalen region. The administrative centre of the municipality is the village of Dun on the island of Jøa. Other villages include Salsnes and Nufsfjord.-General information:...

, and Nærøy

Nærøy

Nærøy is a municipality in Nord-Trøndelag county, Norway. Nærøy is part of the Namdalen region. Norway's smallest town, Kolvereid, is the administration centre of the municipality...

. The large wide firth is about 50 kilometres (31.1 mi) long which then narrows into a fjord which is about 75 kilometres (46.6 mi) long. The narrower fjord part of Folda is often called the Foldfjorden or Innerfolda. Most of the fjord is very narrow, some places with steep cliffs. It has the largest length to width factor among Norway's fjords. The fjord is crossed by the Norwegian National Road 17 road using the Folda Bridge

Folda Bridge

Folda Bridge is a suspension bridge that crosses Foldereidsundet in Nord-Trøndelag county in Norway. The bridge is 336 metres long, the main span is 225 metres, and the maximum clearance to the sea is 38 metres.-External links:***...

 at Foldereid

Foldereid

Foldereid is a village and a former municipality in the northern part of Nord-Trøndelag county, Norway. The municipality encompassed the area surrounding the inner part of the Folda fjord, the Innerfolda...

. Spruce

Spruce

A spruce is a tree of the genus Picea , a genus of about 35 species of coniferous evergreen trees in the Family Pinaceae, found in the northern temperate and boreal regions of the earth. Spruces are large trees, from tall when mature, and can be distinguished by their whorled branches and conical...

forests cover most areas around the fjord. The outer-Folda area is notorious for its rough seas, and has been called an "ocean graveyard" .