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State of Missouri Parks

USA Parks
Northeast Region
Clarence Cannon National Wildlife Refuge
Clarence Cannon National Wildlife Refuge © Catherine Dukleth
Clarence Cannon National Wildlife Refuge © Catherine Dukleth
County Road 206
Annada, Missouri   63330
Clarence Cannon NWR was established in 1964 with funds from the purchase of migratory waterfowl stamps. It lies in Pike County, MO, Pool 25 about one mile east of the small town of Annada, MO. The Clarence Cannon Refuge - named for Clarence Cannon, a former Missouri congressman - is the headquarters for the Great River NWR. The area was formerly part of an agricultural levee district, and all but a few hundred acres is encompassed by a levee. This NWR covering 3,750 acres of Mississippi River floodplain, was established to provide a feeding and resting area for migratory birds.

Over 2000 acres of this refuge are managed for wetland plant production. In addition to water control, the wetland management units are disced, burned, mowed and cropped to maintain a diversity of plants which provide excellent forage for migratory shorebirds, marsh birds and waterfowl. Over 400 acres on Clarence Cannon NWR are annually cropped by cooperative farmers. Corn, soybeans, winter wheat and clover are rotated through the crop fields and wetland management units to maintain diversity. The hardwood trees were severely impacted by the prolonged 1993 flooding. Over 80% of the pin oaks and hickories died, but some natural regeneration is occurring. Approximately 450 acres of bottomland forest remains.

Following the 1993 flood, an 800-foot spillway was cut into the Mississippi River levee on the southeast side of the refuge. The construction allows flood waters to enter the refuge more frequently. The spillway has provided increased connectivity to the river and temporary floodwater storage, which may help reduce downstream flooding on private lands.

The refuge has many visitors who come to observe over 200 species of migratory birds, including bald eagles, waterfowl, shorebirds and songbirds. Many birds also nest on the refuge including the king rail (a Missouri state endangered species) and a pair of bald eagles.

A managed deer hunt is conducted Clarence Cannon. Fishing by boat is permitted in Bryant?s Creek along the southern refuge boundary. Portions of the refuge are seasonally closed to public entry based on peak waterfowl migrations. This link opens in a new windowCuivre River State Park, located south of Clarence Cannon NWR, offers a variety of outdoor opportunities including hiking and camping.

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From St. Louis, take I-70 west to the Highway 79 exit. Take Highway 79 north approximately 35 miles to the town of Annada. In Annada, take County Road 206 east one mile to the refuge office.


State of Missouri Parks