Vista, Missouri

The Weaubleau structure is a probable meteorite impact site in western Missouri near the towns of Gerster, Iconium, Osceola, and Vista. It is believed to have been caused by a 1,200-foot (370 m) meteoroid between 335 and 340 million years ago during the middle Mississippian Period (Latest Osagean to Earliest Meramecian). It is listed by the Impact Field Studies Group as a "probable" impact structure.The structure consists of an area of severe structural deformation and extensive brecciation that was poorly understood and had been thought to be the result of either thrusting over a dome or a cryptoexplosive event. A 12-mile (19 km) circular structure was discovered by geologist Kevin R. Evans through examination of digital elevation data. The structure was originally called the Weaubleau-Osceola structure after Weaubleau Creek and Osceola. It is now known as the Weaubleau structure. Because the site was covered by later Pennsylvanian Period sediments, and only partially exposed to erosion relatively recently, its structure is well preserved, and its age can be determined with fair accuracy. It is one of a series of known or suspected impact sites along the 38th parallel in the states of Illinois, Missouri, and Kansas. These 38th parallel structures are thought to possibly be the result of a serial impact, similar to that of comet Shoemaker-Levy 9 on Jupiter, an extremely unlikely event on Earth. The argument for a serial strike would be greatly strengthened if the ages of the other 38th parallel structures could be constrained to the same period as the Weaubleau structure.The Weaubleau structure is one of the fifty largest known impact structures on earth and the fourth largest in the United States. The three larger ones in the US either have been glaciated and buried (Manson crater), are under water (Chesapeake Bay crater), or have been subjected to orogeny (Beaverhead impact structure). Therefore, the Weaubleau structure is the largest exposed untectonized impact structure in the US.

Doyal Township is an inactive township in St. Clair County, in the U.S. state of Missouri.Doyal Township was erected in 1872, taking its name from H. L. M. Doyal, an early settler.

Raney is an unincorporated community in southeastern St. Clair County, in the U.S. state of Missouri. The community is located along Missouri Route V approximately four miles southwest of Vista. It is on a ridge between the Sac River to the west and Coon Creek to the east. Waters of the Truman Reservoir reach into the Sac and Coon Creek to the northwest and northeast of the community.

Gerster is a town in St. Clair County, Missouri, United States. The population was 21 at the 2020 census.

Dallas Township is an inactive township in St. Clair County, in the U.S. state of Missouri.Dallas Township was erected in 1872.

Polk Township is an inactive township in St. Clair County, in the U.S. state of Missouri.Polk Township was erected in 1841, taking its name from President James K. Polk (1795-1849).

Collins is a village in St. Clair County, Missouri, United States. The population was 125 at the 2020 census.

Collins Township is an inactive township in St. Clair County, in the U.S. state of Missouri.Collins Township was erected in 1872, taking its name from William Collins, a local judge.

Weaubleau is a city in Hickory County, Missouri, United States, founded in 1867. The population was 378 at the 2020 census.

Panther Creek is a stream in Polk, Hickory and St. Clair counties of southwest Missouri. It is a tributary of Brush Creek. The stream headwaters are in northwest Polk County at 37°46′56″N 93°30′33″W and the confluence with Brush Creek in southeast St. Clair County is at 37°49′54″N 93°37′41″W. The stream source lies east of Missouri Route 13 southwest of Humansville. The stream flows north to northeast and turns westward just south of Flemington and then northwest entering the southwest corner of Hickory County where it passes under Missouri Route 123. It enters St. Claire County and meanders back into Polk County and then back into St. Clair County where it passes under Route 13 to its confluence with Brush Creek.Panther Creek was named on account of panthers in the area.

Weaubleau Township is an inactive township in Hickory County, in the U.S. state of Missouri.Weaubleau Township was established in 1881, taking its name from a creek of the same name within its borders. The city of Weaubleau is located within the township.

Humansville is a city in Polk County, Missouri, United States. As of the 2020 census, the city population was 965. It is part of the Springfield, Missouri Metropolitan Statistical Area. Carl Long is the current mayor, sworn in on October 7, 2019.