Our Prairies

Located atop an ancient lake bed and just 20 miles south of Chicago’s Loop, there remains today one of the finest tall grass prairie preserves found anywhere in the Midwest. The Indian Boundary Prairies consist of four basic sites and a few non-contiguous parcels.

The four primary site names are:
Dropseed Prairie
Gensburg Prairie
Paintbrush Prairie
Sundrop Prairie

Together these sites form a complex of natural lands with a combined area of over 300 acres located within the City of Markham, Illinois. Each site offers the visitor its own unique character and beauty as well as a wide variety in its floral and faunal composition. These Midwestern tall grass prairie remnants are a perennial kaleidoscope of changing colors, forms, and biotic diversity. It is estimated that over 95% of the pre-settlement plant and animal species native to these sites continue to survive within these preserves. Visitors are encouraged to make frequent visits to view the dynamics and beauty of this natural wonder throughout the year.

Visitors must observe the following rules within the preserve boundaries:

  • Visitors must stay on designated improved or mowed pathways.
  • A preserve staff member must accompany groups of 10 or more.
  • No animals of any kind shall be brought into the preserves, with the exception of service animals for sight-impaired persons.
  • No motorized vehicles.
  • Preserves close at dusk.

The Indian Boundary Prairies are supported by