The northern leopard frog can be found from southeastern British Columbia to Labrador, and from the southcentral Northwest Territories down through the central and southwestern United States, near Mexico. While it is generally common, its Western Boreal and Prairie populations are at risk. To find out more about these populations and why they are at risk, 90,000 km2 of southern Alberta was surveyed annually in 2009 and 2010 using different techniques. With this data, scientists can identify critical habitat requirements (or the exact area needed for the species’ recovery) and determine the extent and type of management needed to ensure the long-term survival of northern leopard frogs in Alberta. This is the largest investigation into northern leopard frogs in Canada.