If you went to school in Dillon then you know that ducks can be found around there. Butte is Butte. Weird town but I knew a couple of kids from Billings that went there for engineering and had a great time. Bozeman is one of those towns with potentially too many distractions for some of the young'uns.
As for your hunt, I thought the pic looked somewhat familiar. All through that area the birds roost on the Yellowstone River and feed on the corn fields. Great goose hunting, or so I have heard.
My daughter and fiance now live in Fromberg, south of Laurel, where he grew up.