Area of Natural and Scientific Interest

An Area of Natural and Scientific Interest (or ANSI) is an official designation by the provincial Government of Ontario in Canada applied to contiguous geographical regions within the province that have geological or ecological features which are significantly representative provincially, regionally, or locally. Some sites with this designation were assessed through the International Biological Program between 1964 and 1974. As of 2014, over 1000 sites covering have been designated in the province.