- This 1,151-acre preserve includes a grand fir - Douglas-fir forest with dry grassland balds and shrublands. It contains representatives of most of the grand fir-zone plant communities found in the southern part of the eastern Cascades and includes a wide diversity of wildlife habitat. Most of the forest on the site ranges from 130-160 years in age and is naturally regenerated from past wildfires. Exposed, dry slopes on the preserve support patches of Oregon white oak - Fremont silktassel chaparral habitat and open grassland balds. The preserve also protects the upper half of the Dry Creek watershed.