Causes of Excessive Phlegm & Mucus in the Throat. While chronic phlegm does become a serious cause for worry for many, the truth is that there are a number of reasons for phlegm or excessive mucus in throat. For some, it may just be a case of morning reflux, with no excessive production of flem during the rest of the day.
The Red River in Minnesota and Canada every dozen years freezes and then thaws unevenly causing floods unless towns build dikes or huge diversion dams like at Winnipeg in Canada. Now in 2009 the Mississippi River freezes north of Iowa, and south of Iowa there are patches of freezing. Around 1900 in St. Louis the river froze which surprised most there although it was really an ice dam of millions of icebergs, and people walked across this ice gorge of ice jams.
Enjoy these fun Mississippi River facts for kids. Learn about how long the Mississippi River is, what states it goes through, its history, famous events and more. Check out our range of interesting facts about the Mississippi River. 1  The length of the Mississippi River is approximately 2,320 miles (3,730 km), slightly shorter than the Missouri River. 2  The Mississippi and Missouri Rivers combine to form the longest river system in the USA and North America.