|Walnut Woods State Park|
The Raccoon River forms the northern border of Walnut Woods State Park
|Location||Polk, Iowa, United States|
WALNUT WOODS STATE PARK Latitude and Longitude:
|Area||260 acres (110 ha)|
|Elevation||820 ft (250 m) |
|Governing body||Iowa Department of Natural Resources|
|Website||Walnut Woods State Park|
Walnut Woods State Park is a state park of Iowa, US, located in suburban West Des Moines. Within the Des Moines metropolitan area, the park preserves a bottomland hardwood forest featuring the largest natural stand of black walnut trees in North America.  The Raccoon River meanders through the 260-acre (110 ha) park, providing fishing and canoeing opportunities. The park also provides picnic areas, a limestone lodge built in the 1930s, and a small campground with 22 sites. More than 90 bird species have been seen in the park. 
- "Walnut Woods State Park". Geographic Names Information System. United States Geological Survey. 1979-04-30. Retrieved 2011-02-27.
- "Walnut Woods State Park" (PDF). Iowa Department of Natural Resources. Retrieved 2011-01-26.
- "Walnut Woods State Park". Iowa Department of Natural Resources. Retrieved 2011-01-26.