Want to become an official river rat? Or, see what it's like to be a lockmaster on the Mississippi River? Try our Mississippi River Interactives.
Fort Snelling Upper Post Timeline
Learn about the history of Fort Snelling Upper Post with a timeline. From the creation of the Department of the Dakotas in the mid-1800s to the development of the Military Intelligence Service Language School during World War II. (Adobe Flash required).
River Rat Quiz
Do you know how long it takes a raindrop to travel from Lake Itasca to the Gulf of Mexico or the depth of the Mississippi River at its deepest point? Learn about the Mississippi River by visiting our river facts page and then test your river knowledge by taking the River Rat Quiz.
You Are the Lockmaster!
A kayak is approaching the lock and you must direct the vessel through the lock and dam because you are the lockmaster. Can you open and close the entry gate, activate the filling valve and help the kayaker safely pass through?