They are active in the lower Niagara river off of Artpark in Lewiston. Have a good pair of chest waders and long handle dipping net. Mostly just after dark people start dipping for them. I think its a 2 quart limit per day. There is also a free smelt fry every year that's in Lewiston. People donate smelt and a
everyone is invited to come and enjoy!! Things start to pick-up in later april.