Envirothon is a enviromental competition in which teams of five answer questions about the natural world. There are five stations, forestry, soil, aquatics, wildlife and special topic (varies by year). Teams work together to answer the questions at a station to complete it in the available amount of time.
Their are three possible competitions that North American teams can go to. First is a Regional, then is Provincial (or state) and the most difficult competition is International (all of North America). Each of these competitions occurs once a year, usually in the spring.