Route 66 Prairie

A Monarch Sanctuary on the Mother Road

Located just north of Litchfield along the East Frontage Road of I-55, the Route 66 Prairie offers a unique blend of natural beauty and highway history. This 10-acre native prairie is a dedicated habitat within the Illinois Route 66 Monarch Flyway, a corridor designed to support the migration of Monarch butterflies.

The Monarch Connection
During the late summer and early fall, this site becomes a bustling waystation for Monarchs making their epic journey to Mexico. The prairie has been carefully restored with over 200 native plant species, including various milkweeds and wildflowers that serve as essential fuel for pollinators. It is a collaborative project involving the Natural Area Guardians, IDOT, and Pheasants Forever, transforming a roadside strip into a vibrant ecosystem.

Walk on History
What makes this prairie special for road-trippers is that the walking path follows the exact alignment of the original 1930–1940 Route 66 roadbed. While the pavement is gone, you are literally walking in the tire tracks of the past.

• Artifacts: Look for the two large chunks of original Route 66 concrete placed at the north end of the path—tangible relics of the highway’s early days.

Visitor Experience
The prairie is designed to be accessible. It features a gravel parking lot large enough for buses and RVs, interpretive signage explaining the habitat, and a mowed walking path that invites visitors to stretch their legs among the tall grasses and wildflowers.

Key Stats:

• Size: 10 Acres.

• Biodiversity: 200+ Native Plant Species.

• Location: East Frontage Road (Old Route 66) between Litchfield (Exit 52) and Carlinville (Exit 60).