Williams Prairie

 

Directions

 

From I-80:

Take exit 230

Travel north 4 miles on County W38 (Blackhawk Ave. NW) through Oxford (where it becomes State Highway 109) to U.S. Highway 6 junction

Continue north on Old Highway 6 NW for about 0.7 miles and bear right onto Cemetery Road NW (becomes County F28)

Go north another 0.8 miles to Grabin Road NW, and turn left (west)

Proceed approximately 1.1 miles to Blackhawk Ave. NW and turn right

From I-80:
Take exit 4

Travel west about 7.7 miles on County F28 to Cemetery Road NW junction

Continue straight ahead (west) on Grabin Road NW, following the direction above to the preserve.

The preserve will be located about 200 yards up on the right (east) side of the road.

Williams Prairie is a nice example of a wet prairie and sand prairie that includes many sedge grasses. This interesting combination within a prairie makes it biologically important.

Why You Should Visit
Williams Prairie is a shallow lowland that features excellent examples of sedge meadow and wet prairie, dominated by sedges, bluejoint grass, slough grass and big bluestem. The sandy knoll was disturbed in the past, and is dominated by Kentucky bluegrass, but still contains a good representation of mesic-dry prairie species.

Location
Johnson County, northwest of Iowa City 

Size
21 acres

Conditions
This preserve is a wet sedge meadow prairie, which occurs in soils saturated by surface water and is dominated by sedge species. It consists primarily of a shallow lowland that is wet most of the time, and a sandy knoll in the southeastern portion of the preserve.

Preserve Visitation Guidelines.

What to See: Plants
Over 320 species of vascular plants and eight bryophytes (mosses and liverworts) have been reported from the site. Rare plants include Virginia bunch-flower, northern Adder’s tongue, bluejoint grass and cord grass, New Jersey tea and swamp milkweed. 

What to See: Animals
Williams Prairie supports many species of nesting birds, including the red-winged blackbird and the short-eared owl. The preserve is also home to the ornate box turtle, dicksissel and meadowlarks.

Why the Conservancy Selected This Site
Williams Prairie was deeded to the Conservancy in 1973, and was dedicated as a biological State Preserve in 1976. John Williams bought the area in the early 1900s and used it as a hayfield. It was rediscovered by botanists from the University of Iowa in the 1960s.

What the Conservancy Has Done/Is Doing
Prescribed fire and cutting of invading woody plants are management techniques used by the Conservancy to maintain a healthy and diverse prairie system.