Tags: Park.
The Willamette Floodplain consists of 713 acres (289 ha) of natural grassland near the Willamette River that was made a National Natural Landmark in May 1987. The floodplain is within the William L. Finley National Wildlife Refuge and located about 10 miles (16 km) south of Corvallis in Benton County Oregon.It is the largest remaining native unplowed example of bottomland interior valley grassland in the North Pacific Border natural region.
