This trail system is slated for retirement. It will close to the public Dec. 31, 2021 as part of ACRES’ comprehensive plan to update visitor amenities at our nature preserves. Learn more at

Preserve Description

The Herman F. Hammer Wald Nature Preserve is in various stages of forest succession. There’s a field that was cultivated and now has scattered ash, red maple, hawthorn, basswood, elm, black walnut and hop hornbeam — trees of early succession. There’s a mature forest of beech, hickory, sugar maple, tulip, cherry and oak trees. The variety of trees and stages of tree growth are matched by the variety of birds and wildflowers.

  • Address:

    16905 Rupert Road, Grabill, IN 46741

  • County:


  • Acreage:

    70 acres

  • Trail Length:

    1.2 miles

  • Trail Difficulty:

  • Year(s) Acquired:

    1989, 2004

Preserve Guide

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