Question: What region whose name means "Estate of the Salt Chamber" has Austria's third largest lake?
Context: Attersee, also known as Kammersee, English sometimes Lake Atter, is the largest lake of the Salzkammergut region in the Austrian state of Upper Austria.  It is Austria's third largest lake by area, surpassed only by Lake Constance and Lake Neusiedl, which, however, both extend beyond national borders. The Ihalmiut ᐃᓴᓪᒥᐅᑦ ] ("People from Beyond") or Ahiarmiut ("the Out-of-the-Way Dwellers") are a group of inland Inuit who lived along the banks of the Kazan River, Ennadai Lake Little Dubawnt Lake (renamed "Kamilikuak"), and north of Thlewiaza ("Big River") in northern Canada's Keewatin Region of the Northwest Territories, now the Kivalliq Region ("Barren Lands") of present-day Nunavut.  Ihalmiut were Caribou Inuit, inland-dwelling people in the Barren Lands region whose subsistence centered on hunting barren-ground caribou.  Ihalmiut survival through dark Arctic winters on a diet centered on dried caribou meat, and when it was gone, hunting for ptarmigan (Nunavut's official bird), until the spring return of caribou. Bala Lake (] ; Welsh: "Llyn Tegid" , ] ; its correct name, being Llyn Tegid in Welsh) is a lake in Gwynedd, Wales.  The name Tegid may be related to Welsh "teg", meaning "fair".  It was the largest natural body of water in Wales before its level was raised by Thomas Telford to help support the flow of the Ellesmere Canal.  It is 3.7 mi long by 0.5 mi wide, and is subject to sudden and dangerous floods.  The River Dee runs through it and the waters of the lake are famously deep and clear.  The town of Bala sits at its north-eastern end and the narrow gauge Bala Lake Railway runs for 3 mi along the lake's south-eastern shore, and continues south-westward to the village of Llanuwchllyn (whose name means "church ['llan'] above ['uwch'] the lake ['llyn'"). The Sua Pan or Sowa Pan is a large natural topographic depression within the Makgadikgadi region of Botswana.  It is located near the village of "Sowa", whose name means salt in the language of the San.  The Sua salt pan is one of three large pans within the Makgadikgadi, the other two being Nxai Pan and Nwetwe Pan. Tabaldak is the creator among the Abenaki and Algonquian people of northeastern North America.  His name means "The Owner" who "created all living things but one".  Tabaldak created people out of stones, but thought these people's hearts were too cold.  He broke up these stones and left them scattered over the Abenaki land.  Next he tried wood, and out of these came the Abenaki people.  The only creature Tabaldak did not create was Odzihodo, whose name means "He Makes Himself from Something."  Initially Odzihodo only had his hand, and as he was not a creator of things, required help from Tabaldak.  By the time he was fully formed, Odzihodo had already transformed the world to his vision.  To do this, he piled dirt to make mountains, and dug lines for rivers.  He took great care in forming Lake Champlain, and happy with his work, turned into a stone. Røssvatnet (Southern Sami: "Reevhtse" ) is a lake and reservoir in the municipalities of Hattfjelldal and Hemnes in Nordland county, Norway.  It has been the site of human occupation since the Stone Age.  Its area of 219 km2 makes it the second largest lake in Norway by surface area.  Without the dam which has regulated the lake since 1957, it would be 190 km2 and the third largest lake in Norway.  Its depth is 240 m , its volume is estimated at about 15 km3 , and its surface elevation is 374 m above sea level. Shighnan (also Shignan, Shugnan, Shughnan, Khughnan in the local language) (Persian: شغنان‎ ‎ ) is an historic region whose name today may also refer to a town and a district in Badakhshan Province in the mountainous northeast of Afghanistan and also a district in Gorno-Badakhshan Autonomous Province in Tajikistan.  The administrative center of the Shighnan District of Afghanistan is called Qaleh Barpanjeh (قلعه برپنجه).  The administrative center of the Shughnon District of Tajikistan is called Khorogh. Theodore Roosevelt Lake (usually called Roosevelt Lake, sometimes Lake Roosevelt) is a large reservoir formed by Theodore Roosevelt Dam on the Salt River in Arizona as part of the Salt River Project (SRP).  Located roughly 80 miles (130 km) northeast of Phoenix in the Salt River Valley, Theodore Roosevelt is the largest lake or reservoir located entirely within the state of Arizona (Lake Mead and Lake Powell are larger but both are located partially within the neighboring states of Nevada and Utah respectively).  Both the reservoir and the masonry dam that created it, Roosevelt Dam, were named for U.S. President Theodore Roosevelt who dedicated the dam himself in March 1911.  Roosevelt Lake is a popular recreation destination within the Tonto National Forest, as such the facilities located at this lake are managed by that authority. Taal Lake, formerly known as Bombón Lake, is a freshwater lake in the province of Batangas, on the island of Luzon in the Philippines.  The lake fills Taal Caldera, a large volcanic caldera formed by very large eruptions between 500,000 and 100,000 years ago.  It is the country's third largest lake after Laguna de Bay and Lake Lanao.  Volcano Island, the location of Taal Volcano's historical eruptions and responsible for the lake's sulfuric content, lies near the center of the lake.  There is a crater lake on Volcano Island.  Known as the Yellow Lake or the Main Crater Lake, it contains its own small island, Vulcan Point.  Vulcan Point was thought to be the largest third order island in the world but Treasure Island (Ontario) is much bigger and is thought to be the world largest, and is also on a freshwater lake. The Salzkammergut is a resort area located in Austria.  It stretches from the City of Salzburg eastwards along the Austrian Alpine Foreland and the Northern Limestone Alps to the peaks of the Dachstein Mountains, spanning the federal states of Upper Austria, Salzburg, and Styria.  The main river of the region is the Traun, a right tributary of the Danube.  The name "Salzkammergut" literally means "Estate of the Salt Chamber" and derives from the Imperial Salt Chamber, the authority charged with running the precious salt mines of the Habsburg Monarchy.  It is a UNESCO World Heritage Site.
Answer: Salzkammergut