John Merle Coulter Nature Preserve

About John Merle Coulter Nature Preserve

This state-dedicated nature preserve features a complex of sand prairie, oak savanna, and wetlands. More than 400 species of plants have been identified, many of them state-listed. Prickly pear cactus produces its showy yellow blossoms in early summer. An outstanding display of prairie wildflowers attracts a variety of butterflies in late summer. Coulter is a good place to find blue racers, hognose snakes, and six-lined racerunner lizards.The Yellow Birch Fen section of Coulter Preserve comes alive in the early spring. Skunk cabbage emerges from the mud to unfurl its large glossy leaves and showy ferns develop from delicate fiddleheads. Marsh marigold, Canada Mayflower, May apple, wild columbine, wild geranium, starflower, and many other lovely wildflowers follow in short order

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More to Explore in Porter County, IN

Volunteer with Openlands​

Connecting people to nature where they live.

As innovative protectors and stewards of the land since 1963, Openlands exists to create access to nature for all. Through local alliances, forward vision, and persistent action, Openlands connects and leads conservation work, serving as a guiding voice for communities, organizations, and more effective policy in northeastern Illinois and the surrounding region.

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Jean Franczyk

See you at the 2026 Openlands Annual Luncheon!

Join us on Oct. 21 for “From the Ground Up,” honoring Jean M. Franczyk and featuring Dr. Tessa Francis as keynote.