Waterfalls
Missouri has many great waterfalls, although many don't flow year round. Some only flow during the rainy season or after a period of large rainfall. Despite this, there are still plenty that don't require rainfall and flow year round. Each listed waterfall will contain a description that will mention how often it flows and when is the best time to visit. I have broken Missouri up into separate categories (click on the images below to visit an area):
St. Francois Mountains
Kansas City Area
South Central Missouri
St. Louis Area
Southwestern Missouri
Southeastern Missouri