St. Louis County, Missouri. St. Louis County is a county located in the far eastern portion of Missouri. It is bounded by the Mississippi River, the Missouri River, the Meramec River, and the state of Illinois. As of the 2015 Census Bureau population estimate, the population was 1,003,362, making it the most populous county in Missouri.
Mount Vesuvius is best known for its eruption in AD 79 that led to the burying and destruction of the Roman cities of Pompeii, Herculaneum and several other settlements.t was then built up by a series of lava flows, with some smaller explosive eruptions interspersed between them. However, the style of eruption changed around 19,000 years ago to a sequence of large explosive plinian eruptions, of which the 79 AD one was the most recent.
Mt. Vesuvius is a stratovolcano (periodic, explosive eruptions and a steep profile) It is a steep conical volcano. Its structure has been built up of solidified lava, pumice, â¦ and ash, one layer at a time: a legacy of all the eruptions of the volcano over time.esuvius is a composite volcano. They are a violent type of volcano  hence the effects it had on Pompeii. Edit. Share to: 1  Exploring the Varied Geographical Features of the Bay of Naples The Bay of Naples lies along the southwest coast of Italy in the region of Campania.