What I saw

A couple of Fridays ago, Dean and I ran the Wabash River from Techumseh, IN to Terre Haute. Upstream from the power plant, I saw what I would have guessed to be gator if I had been in Florida instead of Indiana. It looked like the picture in DNR pocket guide (I'm only showing the part I saw come out of the water) of an Alligator Gar (Lipisosteus spatula).
Description: Greenish brown on back, light or yellow on belly (I didn't see the belly). Snout is beak-like. Up to 300 lbs., most 50 to 150 lbs.
I don't know how big the fish I saw was. They eat fish and I wouldn't want to be mistaken for one by a 300 pound gar. The head I saw did not appear to be huge but I crossed to the other side of the river.