They are a bit small for oxbows / meanders. And I'd expect to see them all around the area if they were. They seem local to this small patch though.
I think the story becomes clearer when you look in Bing. There has been a lot of earth moving in the area to deal with flooding and draining. See the area just to the NW. The plain just to the east has a few of the trenches and they look like they are the result of earth removal, probably to build the mounds and mini-dams in the channel to the NW.
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I think the story becomes clearer when you look in Bing. There has been a lot of earth moving in the area to deal with flooding and draining. See the area just to the NW. The plain just to the east has a few of the trenches and they look like they are the result of earth removal, probably to build the mounds and mini-dams in the channel to the NW.
http://www.bing.com/maps/default.aspx?v=2&cp=34.532338168854814~-92.16950202088984&lvl=18&dir=0&sty=h
http://www.bing.com/maps/default.aspx?v=2&cp=34.57874935910931~-92.19624900918436&lvl=17&dir=0&sty=h