Question:  The Blanco River is a river in a geographical region located in what Plateau?

Context paragraphs:
Blanco State Park: Blanco State Park is a 104.6 acres park, along a mile of the Blanco River, on the southern edge of Blanco, Texas.  It features camping, picnicking, screened shelters, swimming, tubing, nature trails, and a wildlife viewing station.  The park is hilly with mostly cedar, and pecan trees.  Among the animals seen at the park are nutria, mallards, raccoon, armadillo and squirrel.

Gobernador Slope: The Gobernador Slope is a geographical region located in the northwestern portion of the U.S. state of New Mexico.  It is near both Chacra Mesa and Chaco Canyon, which are noted for their Chacoan Anasazi ruins.  The Chaco Slope is differentiated from the neighboring Chuska Valley, Chaco Core and Chaco Plateau by distinct surface water drainage patterns and geological formations.  These regions were first labelled by archaeologist Gwinn Vivian.

Chaco Slope: The Chaco Slope is a geographical region located in the northwestern portion of the U.S. state of New Mexico.  It borders the Chaco Core, which contains both Chacra Mesa and Chaco Canyon.  The canyon itself is noted for its Chacoan Anasazi ruins.  The Chaco Slope is differentiated from the neighboring Chuska Valley, Chaco Core, and Chaco Plateau by distinct surface water drainage patterns and geological formations.  These regions were first labelled by archaeologist Gwinn Vivian.

Blanco County, Texas: Blanco County ( ) is a county located on the Edwards Plateau in the U.S. state of Texas.  As of the 2010 census, the population was 10,497.  Its county seat is Johnson City.  The county is named for the Blanco River which traverses the county.  The State of Texas formed Blanco County in 1858 from portions of Burnet, Comal, Gillespie and Hays counties.  The city of Blanco served as the county seat from 1858 to 1890, when it was moved to Johnson City.

Texas Hill Country: The Texas Hill Country is a geographical region located in the Edwards Plateau at the crossroads of West Texas, Central Texas, and South Texas.  Given its geographical location, terrain features, and native vegetation, the Hill Country could be considered the beginning or end of the American Southwest (depending on which direction one is travelling).  The region is notable for its karst topography and tall rugged hills of limestone or granite.  Many of the hills rise to a height of 400-500 feet above the surrounding plains and valleys, with Packsaddle Mountain rising to a height of 800 feet above the Llano River in Kingsland.  The Hill Country also includes the Llano Uplift and the second-largest granite dome in the United States, Enchanted Rock.  The terrain throughout the region is punctuated by a thin layer of topsoil and a large number of exposed rocks and boulders, making the region very dry and prone to flash flooding.  Native vegetation in the region includes various yucca, prickly pear cactus, desert spoon, and wildflowers in the Llano Uplift.  The predominant trees in the region are ashe juniper and Texas live oak.

Chuska Valley: The Chuska Valley is a geographical region located in the northwestern portion of the U.S. state of New Mexico.  Sitting atop the Colorado Plateau in the Four Corners region of the desert Southwest, it is near both Chacra Mesa and Chaco Canyon, which are noted for their Chacoan Anasazi ruins.  The Chaco Slope is differentiated from the neighboring Gobernador Slope, Chaco Core, and Chaco Plateau by distinct surface water drainage patterns and geological formations.  These regions were first labelled by archaeologist Gwinn Vivian.  The valley is associated with the nearby Chuska Mountains.

Blanco River (Texas): The Blanco River is a river in the Hill Country of Texas in the United States.

Ural (region): The Urals (Russian: Ура́л ) are a geographical region located around the Ural Mountains, between the East European and West Siberian plains.  It extends approximately from north to south, from the Arctic Ocean to the bend of Ural River near Orsk city.  The boundary between Europe and Asia runs along the eastern side of the Ural Mountains.  Ural mostly lies within Russia but also includes a part of northwestern Kazakhstan.  This is a historical, not an official entity, with the boundaries overlapping its western Volga and eastern Siberia neighbor regions.  At points in time, parts of the Urals were considered a gateway to Siberia, if not Siberia itself, or were combined with the Volga administrative divisions.  At present time, there are two official namesake entities, the Ural Federal District and the Ural economic region.  While the latter follows the historical boundaries, the former is a political product; the District omits Western Urals and includes Western Siberia instead.

Jurong: Jurong (, Tamil: ஜூரோங் ) is a geographical region located at the south-westernmost point of the West Region of Singapore.  Although mostly vaguely defined, the region's extent roughly covers the planning areas of Jurong East, Jurong West, Boon Lay, and Pioneer, along with Jurong Island in the Western Islands cluster and the southernmost portions of the Western Water Catchment.  Should it be described at its greatest historical extent, the region can also include present-day Bukit Batok and Tuas as well.  Jurong also covers several offshore islands as well, including Pulau Damar Laut and Pulau Samulun, both of which are located within the planning areas of Jurong East and Boon Lay respectively; along with the aforementioned Jurong Island.  The coastline of the region on mainland Singapore, faces the strait of Selat Jurong, while the southernmost island of the region, Jurong Island, faces the strait of Selat Pandan.

Vistula River Gorge of Lesser Poland: The Lesser Poland Gorge of the Vistula (Polish: "Małopolski Przełom Wisły") is a geographical region located in central-eastern Poland, which administratively belongs to three Polish voivodeships – Lublin, Masovian, and Świętokrzyskie.  The Gorge is for the most part made by the valley of the Vistula, with two Polish uplands on both sides of the river – Lesser Poland (or Małopolska) Upland to the west, and Lublin Upland to the east.  The gorge is about 70 kilometers long, extending from the town of Zawichost in the south, to Puławy in the north.  It is considerably narrow, only up to 3 kilometers wide.  In some places, the banks of the Vistula valley are very steep, up to 70 meters above the water level.

Supporting paragraphs: Blanco River (Texas) Texas Hill Country
Answer: Edwards Plateau