Montana anglers spend over 3 million days a year in pursuit of an array of fish in the state’s rivers, lakes and streams, FWP’s latest angler survey reveals. Montana angling surveys, funded in part by the Sports Fish and Wildlife Restoration Program, are conducted every two years. The first survey was done in 1958, when 1.42 million angler days were recorded. An "angler day" is one angler fishing one body of water for any length of time in a given day. The 1999 Montana Statewide Angling Pressure Survey shows: