The historic site includes two wetlands and a pond which encompass approximately 148.5 acres.The larger wetland is a four to six foot depression area located on the second floodplain bench of the Arkansas River.  It is three to five feet higher in elevation than the tamarisk invasion zone.  The smaller wetland is located below the pond and drains into the river at high water events.  Until 2000 there was no comprehensive inventory of plants or fish of the wetland areas.