The Adam Ryan Wildlife Preserve consists of nearly 41 acres of meadow and forest land, along Dog Bar Road and Alta Sierra Drive, not far from Mathis Pond. This is a generous gift from Alta Brewer and her husband Alan Thiesen and is named after Alta and Alan's young son.

The land was zoned for two condominiums per acre as well as commercial development in this rapidly developing area. Instead the preserve provides a low-impact trail, natural habitat for area wildlife, and a beautiful vista for everyone to enjoy– forever.