Question: The Ozark Plateau and The Gasconade Formation are both located in what state?

Context articles: Missouri's 8th congressional district
Hobbs State Park – Conservation Area
Arkansas Arboretum
Hermann AVA
Ozarks
Cookson Hills
Hamamelis vernalis
Ringed salamander
Mammoth Spring
Gasconade Formation

Missouri's 8th Congressional District is one of 435 congressional districts in the United States and one of eight congressional districts in the state of Missouri.
 The district encompasses rural Southeast Missouri and South Central Missouri as well as some counties in Southwest Missouri.
 The district stretches from the Bootheel in the south to the St. Louis southern exurbs of Festus, Hillsboro, and surrounding areas in the Lead Belt; it ranges in the east to counties along the Mississippi River and in the west to counties along the Ozark Plateau near Branson.
Hobbs State Park – Conservation Area is a 12056 acre Arkansas state park in Benton, Carroll, and Madison Counties, Arkansas in the United States.
 The park was bought in 1979 through a huge financial effort from Northwest Arkansas banks.
 Hobbs State Park – Conservation Area is located almost entirely in the Springfield Plateau subdivision of the Ozark Plateau.
 The park, located just south of Beaver Lake, is open for year-round recreation, including 32.9 mi of hiking, mountain bike and equestrian trails.
 Hobbs State Park – Conservation Area also has several picnic areas, a shooting range, and primitive camping sites.
The Arkansas Arboretum is a 71 acre arboretum within Pinnacle Mountain State Park in Little Rock, Arkansas, United States.
 Situated below Pinnacle Mountain along the Little Maumelle River, the arboretum's flora and tree plantings correspond to Arkansas's six geographical regions, ranging from the flat-topped hills and steep valleys of the Ozark Plateau to the flat bottomland and tallgrass prairies of the Mississippi alluvial plain, with a 0.6 mi paved interpretive trail.
The Hermann AVA is an American Viticultural Area located in Gasconade County, Missouri, and entirely contained within the larger Ozark Mountain AVA.
 The wine appellation is located on the southern side of the Missouri River near the town of Hermann, about halfway between St. Louis and Jefferson City.
 The AVA covers the northern-most hills of the Ozark Plateau with many of the 200 acres (80 hectares) of vineyards planted along hillside locations.
 As of 2007, seven wineries were producing wine in appellation, including Missouri's largest winery, Stone Hill Winery.
The Ozarks, also referred to as the Ozark Mountains, Ozarks Mountain Country, and the Ozark Plateau, is a physiographic and geologic highland region of the central United States, primarily in Arkansas, Missouri, and Oklahoma.
 The Ozarks cover a significant portion of southern Missouri, extending as far northeast as the southwestern suburbs of St. Louis.
 In Arkansas, a large portion is contained within the northwestern and northcentral region.
 Much smaller pieces of the Ozarks extend westward into northeastern Oklahoma and extreme southeastern Kansas.
The Cookson Hills are in eastern Oklahoma.
 They are an extension of the Boston Mountains of Arkansas to the east and the southwestern margin of the Ozark Plateau.
 They lie generally between Stilwell, Sallisaw and Tahlequah.
 The area became part of the Cherokee Nation in the early 20th century until 1907, when Oklahoma became a state.
Hamamelis vernalis (Ozark witchhazel) is a species of witch-hazel native to the Ozark Plateau in central North America, in Missouri, Oklahoma, and Arkansas.
The ringed salamander ("Ambystoma annulatum") is native to hardwood and mixed hardwood-pine forested areas in and around the Ozark Plateau and Ouachita Mountains of Arkansas, Oklahoma, and Missouri.
 Most specimens are found in the vicinity of Hot Springs, Arkansas, and the Missouri portion of the Ozark Plateau.
 Small populations have also been found in western Illinois and eastern Oklahoma.
Mammoth Spring is a large, first magnitude karst spring that arises in the Ozark Plateau within the state of Arkansas.
 It is the largest spring in Arkansas and the third-largest spring within the Ozark Plateau region behind Big Spring and Greer Spring.
 Mammoth Spring is the seventh-largest natural spring in the world.
The Gasconade Formation is a geologic formation in the Ozarks of Missouri.
 It preserves fossils dating back to the Ordovician Period.