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.
Map the Mississippi Watershed! Teacher Notes: 2. The Mississippi Watershed is all the land area that drains into the Mississippi River. On the map the watershed (or âbasinâ) boundary is indicated by the dashed line that encircles all Mississippi River tributaries. 4. By definition the Mississippi River starts at Lake Itasca in northern Minnesota. However, it can also be said that the Mississippi River starts wherever rain or snow falls in the Mississippi Watershed, because water that flows from land anywhere in the watershed will eventually flow into the Mississippi River. (This is a good point for discussion.) 8. St. Louis 10. The length of the Mississippi River is approximately 2,350 miles.