Marshall Eddy is a stretch of rapids in Butler County, Missouri, in the Mississippi Alluvial Plain region. It lies about 7 miles southeast of Poplar Bluff and roughly 62.7 miles north of Jonesboro as the crow flies.
The Mississippi Alluvial Plain is the flat, farmed floodplain of the lower Mississippi with bottomland hardwood swamps and essentially no natural waterfalls.
Butler County holds 3 recorded rapids, and several are close by. Hoggs Eddy, is about 1.1 miles away. Big Elm Eddy, is about 6.7 miles away.
Marshall Eddy is located at 36.6884° N, 90.2990° W. The listing is based on the USGS Geographic Names Information System, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The exact position has not yet been verified on aerial imagery, so treat the map pin as approximate. Details on trails, parking and access have not been documented for this rapid yet.