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.
The Atchafalaya River in Louisiana is a major distributary of the Mississippi. The Mississippi River, looking south toward the city of St. Louis.(courtesy USGS). The Mississippi drains most of the area between the Rocky Mountains and the Appalachian Mountains, except for the area drained by the Great Lakes.ith its source Lake Itasca at 1475 feet (450 m) above sea level in Itasca State Park in northern Minnesota, the river falls to 725 feet (220 m) just below Saint Anthony Falls in Minneapolis. The Mississippi is joined by the Illinois River and the Missouri River at Saint Louis, and by the Ohio at Cairo, Illinois.