Saudafjord is 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...

  which stretches from Sandsfjord

Sandsfjord

Sandsfjorden is the outermost part of the northernmost arm of Boknafjorden in Rogaland. The fjord empties into Marvik and opens into Sand where it meets with Sauda and changes its name to Saudafjorden. It is famous for a man once riding down it on a snadufjordenborden or fjord surf-board....

en in Suldal

Suldal

Suldal is a municipality in the northeast of Rogaland county, Norway located in the Ryfylke historically traditional district. Sand i Ryfylke is a the administrative center of Suldal....

, a municipality

Municipalities of Norway

Norway is divided into 19 administrative regions, called counties , and 430 municipalities...

 in the county

Counties of Norway

Norway is divided into 19 administrative regions, called counties . The counties form the primary first-level subdivisions of Norway and are further divided into 430 municipalities...

  of Rogaland

Rogaland

is a county in Western Norway, bordering Hordaland, Telemark, Aust-Agder and Vest-Agder. It is the center of the Norwegian petroleum industry, and as a result of this, Rogaland has the lowest unemployment rate of any county in Norway, 1.1%...

 Norway. It extends to the municipality and central town, Sauda

Sauda

is a municipality and industrial town in Rogaland county, Norway. It is part of the region of Ryfylke. Sauda was separated from Suldal in 1842...

. Saudafjorden is an outlying fjord among the numerous fjords opening to the sea at Boknafjord

Boknafjord

The Boknafjord is a Norwegian fjord located in the county of Rogaland, between the cities Stavanger and Haugesund. The fjord is shared between the municipalities of Kvitsøy, Rennesøy, Finnøy, Tysvær, Bokn and Karmøy....

, and stretches furthest north in Rogaland. Saudafjord is an open, wide fjord with a depth approaching 400 meters.

The fjord was carved by the action of glacier

Glacier

A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

s in the ice age

Ice age

An ice age or, more precisely, glacial age, is a generic geological period of long-term reduction in the temperature of the Earth's surface and atmosphere, resulting in the presence or expansion of continental ice sheets, polar ice sheets and alpine glaciers...

s and was flooded by the sea when the later glaciers retreated. The fjord has no marked threshold as the glacial ice flow joined that from the Hylsfjord

Hylsfjord

Hylsfjord is a fjord in the municipality Suldal in Rogaland, Norway. It is a 20 km long branch of the fjord Boknafjord. The Hylen Hydroelectric Power Station is located in the inner end of Hylsfjord.-References:...

and flowed into the Sandsfjord. End to end, it measures 45 km from Saude to the point it meets the Sandsfjord.