You don't always have to use a big fishing lure to catch big fish, fly fisherman Mike DuFresne is much proof to that. The angler holds up an incredibly big northern pike caught from Montana's Big Horn River. The fish is incredible, DuFresne being the fly fisherman that he is, caught it on a beautiful fly he made at home. If you've ever caught a big pike before, you know how well they fight, well try catching one on a fly equipment! This gorgeous fish gave Mike DuFresne quite a fight on the Big Horn River.