In 1995 the Siebenthaler Company sold this property to The Nature Conservancy, who then turned it over to the Ohio Department of Natural
Resources, Division of Wildlife. BCWA volunteers built the recycled plastic and fiberglass boardwalk, the tower and kiosk, and the Division of
Wildlife completed the wooden boardwalk. Bob Siebenthaler donated funds for Nans Tower in memory of his sister.
Siebenthaler Fen is the crown jewel of the wetland corridor and enjoys year-round use by school groups, birdwatchers and wildflower enthusiasts.
A boardwalk takes you past wet woods, the fen, Beaver Creek, the information kiosk and observation tower.
The trail is accessible by wheelchair with broad areas to turn around. Siebenthaler Fen is a hunting area September through January. Visitors should
wear bright colors during hunting season.
Location: Parking area located on Fairground Rd just east of Beaver Valley Rd.
Lat/Long Coordinates: 39.738198,-84.011638
Trail length: About 1 mile
Trail difficulty: Flat boardwalk wheelchair friendly with turnouts. Stairs to overlook.
What to see: Plant diversity is high along the boardwalk, and flowering peaks from July through September. Look for Marsh Marigolds and Skunk
Cabbage in late winter/early spring, dogwoods and iris in May, Queen of the Prairie in July, Asters in August, Bottle Gentians in September. Fensedge
meadows dominate the loop portion and wet woods line the boardwalk leading to the loop. Butterflies abound all spring and summer. Birds
include Yellow Warbler, Common Yellow Throat, Willow Flycatcher, Sora Rail, Eastern Towhee, House and Carolina Wren, Cedar Waxwing, Redwing
Blackbird, Yellow Shafted Flicker, Red-bellied Woodpecker, Yellow-breasted Chat, Song and Swamp Sparrows, and many more.
Amenities: 130 acres with parking, boardwalk with disabled access, observation deck, information kiosk, benches, hunting and trapping in season, no
Wetland fact: Fens are peatlands fed by mineral-rich springs oozing up from groundwater. Water does not usually cover the surface but runs quickly to
Beaver Creek. The pH is a little over 7 (7 is neutral). The peat, derived from sedges, is about 8 feet deep. Since 1988 biologists have identified over 470 wetland
species here. Such biodiversity provides a genetic bank potentially useful in crop improvement and medicine development.