This is one of the best scenes in the movie... some great fun these poor people were having before many of them were killed by brutal men-hunters.
Epic western by Michael Cimino and a masterpiece of American cinema, based on the infamous Johnson County War of 1892.
The scene already is on YouTube, but it just needed a reupload with the remastered DVD edition. Much brighter colors now :-) Really more fun to watch the entire movie.