The area lies in southwestern Mason County, northwestern Cass County, and one small portion in Schuyler County. Sanganois is one of the few state owned refuges and public hunting areas along the Illinois River. The check station and major access area is located 8 miles northwest of Chandlerville, off Rt. An access road and boat ramp is located 1.5 miles northeast of Browning off Rt.
Public access is largely by boat.
Prior to state acquisition, the lands and waters within Sanganois were owned and operated as private duck clubs. The largest, and the one which the area derives its name, was the Sanganois Gun Club. This club contained 2,700 acres and was purchased in 1948. Both the Illinois and Sangamon rivers contribute to the ecology of the area. Put all litter in the nearest available trash container.