RedactedNarrative: Operator of vessel 1 was fishing on St. Joseph River  when he noticed a large vessel approaching him at approximately 15-20 mph and about 50 yds away going down river. Operator 1 thought that operator of vessel 2 would go around him due to proximity but he started to veer toward vessel 1. Once operator 1 realized that operator 2 did see him, he stood up and started waving his hands and yelling, then he grabbed his air-horn to see if that would work. However vessel 2 didn't yield and vessel 1 started his trolling motor to get out of the way since he didn't have time to start his larger motor. Vessel 2 struck vessel 1 on the port side of the bow and the trolling motor. Operator 1 went to hospital, minor injuries.