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Big sky over Yellowstone River, near Billings Montana
The wide Yellowstone River is a beautiful float trip in the summer. This stretch of the river has smallmouth bass, sauger, catfish and some brown trout, among other fishes. The reach abounds with pelicans (left of photo) who also know that fish are here.
"Limnology" - The study of inland waters
Photo: 2 August 2013