I’ve been exploring the Chippewa River this spring and late winter in the stretch of river between Eau Claire and the Mississippi River near Pepin, Wisconsin. Much of the terrain along this part of the river is barrens such as the Dunnville Barrens and bottoms such as the Dunnville Bottoms. And yes, a bottoms can be a barrens.
Bottoms, as in bottomlands, are “low-lying land along a watercourse” [Merriam-Webster.com]. Barrens are “level or slightly rolling land, usually with a sandy soil and few trees, and relatively infertile.” [dictionary.com.] So bottomland can be barren but not necessarily, and barrens can be on bottomland, but not necessarily.
This is part of the Dunnville Barrens State Natural Area within the Dunnville Bottoms.
This is a fun area to explore. It encompasses the Dunnville Barrens State Natural Area, Dunnville Bottoms, the Dunnville State Wildlife Area, and the Dunnville State Rec Area and Sandbar (great for swimming). The Red Cedar State Trail runs along its southern edge, crosses the river on an old railroad bridge, and ends at its intersection with the Chippewa River State Trail. The Chippewa River State Trail runs along the river between Eau Claire and Durand.