Several nesting pairs along the Missouri, Washburn, ND up to Riverdale at Garrison Dam. Started with one pair back in the early eighties. last I heard they were up to 10 - 12 nesting pair.
As cool as that is however, during the winter they migrate down out of Canada and Alaska and hang out along the river, where they feed on injured fish that have come through the turbines at the dam. Spent many a day fishing off the wing walls at the dam when there would be 25 - 30 eagles diving for fish. Sometimes from not very high, occasionally from some insane heights! Not uncommon for them play or fight or whatever they do, and you get to see some real impressive aerial acrobatics. Ranks right up there at the top of my list of things I've been blessed to see.
Here in Florida, we have one in the neighborhood that thinks he's a buzzard. See him feeding on road kill on a regular basis.