We are pleased to offer several interactive maps on greatriver.com…. Click on Blue Titles to move to the specific site, or just study the interactive map shown. All maps are constantly updated to reflect real-time activity!
CURRENT RIVER FLOOD ALERTS
Below is the USGS map that provides REAL TIME info on which Rivers in the US are cresting. The map below is accurate every day. Black Triangles indicate flood stage. Looking to compare stats with the Flood of 1993? CLICK HERE.
Locate A Vessel By Vessel Name Or Vessel Number
Click Here for a List of Navigable Amerian Rivers
NAVAGATION CHARTS from USACE
Click Here for Upper Mississippi River Charts. Printable page by page in .pdf format
The Upper Mississippi River Navigation Charts cover the Upper Mississippi River from the head of navigation at river mile 866 in Minneapolis, Minn., to the confluence with the Ohio River at Cairo, Ill. The navigable portions of the Minnesota and St. Croix Rivers are also included. The charts were last updated in 2011.
Click Here to DOWLOAD ENTIRE UPPER MISSISSIPPI RIVER CHART BOOK…. 142 MG Minneapolis/St. Paul to Cairo, IL 866 River Miles. Also the St. Croix and Minnesota Rivers. Carry it with you on your tablet or laptop computer!
Click here for Lower Mississippi River Charts. Download entire book.
Cairo, Illinois to the Gulf of Mexico. River Miles 953 to 0 at A.H.P.
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Illinois and Upper Mississippi Rivers to Lake Michigan at Chicago and Calumet Harbors. The charts have been updated in 2013.
Click here for the USGS EARTHQUAKE HAZARD MAP.
If you enjoy reading about the New Madrid Earthquakes of 1811-12 in Volume 3 of DISCOVER! America’s Great River Road, you will enjoy this interactive map of tremors around the US on a moment by moment basis!
TODAY’s Earthquake Fact: The Mid-Atlantic Ridge appears above sea-level at Iceland. This offers scientists a natural laboratory for studying on land the processes also occurring along the submerged parts of a spreading ridge. Iceland is splitting along the spreading center between the North American and Eurasian Plates, as North America moves westward relative to Eurasia.
Today in Earthquake History
August 30, 1986
M 6.9, Romania – Damage (VIII) in the Focsani-Birlad area, including the collapse of a church. Felt (VII) at Bucharest. Two people killed, 558 injured,… Read More