Illinois Missouri and Illinois have a lot of maps of the old mines. Studying what lies under the Land of Lincoln is noteworthy because of the extent of mines under the state.

5 On Your Side's interactive results map allows you to break down election results by county in Missouri and Illinois.

Missouri and Illinois, the two states at the heart of the St. Louis region, have landed on a new list of the hardest-to-pronounce states in the United States, according to a new study.

Flash flood warnings continue Saturday for parts of Missouri and Illinois, as severe weather is forecast across parts of the U.S. over the next three days.

Illinois is one of two states that will host both broods of the periodical cicadas this year: Brood XIX and Brood XIII.

A cicada brood map for 2025 was just released by the United States Forest Service. Will Missouri or Illinois see the insects?

Claims that "billions" or even "trillions" of cicadas will hit cities in Illinois and Missouri are overblown, experts said.

Like it or not, Brood XIX has been spotted in Missouri, according to cicada tracking app Cicada Safari. Here's what to know.

United States Cellular Corp. said it's cutting some 4,100 positions, including some in Missouri and Illinois, as part of its plan to sell its wireless operations to T-Mobile US Inc.

Total solar eclipses occur every year or two, but it is exceedingly rare for the paths of two of them to intersect only a handful of years apart, as it has in a swath of southern Missouri and ...

Back-to-back deluges swamped Kentucky, Missouri and Illinois. These types of storms are expected to be more frequent and more intense as the planet warms, climate experts say.