Blackburn’s Green Hollow Center

1291 Cemetery Road (north of Thurman, IA)

Sustainability Learning Center & Grounds

Blackburn’s Green Hollow Center is a 160-acre nature preserve and sustainability learning center in a remote part of the Loess Hills in Southwest Iowa.  The center was founded by William R. (Bill) Blackburn, who donates the net income from William Blackburn Consulting, Ltd. to its development and preservation.  The property is quite diverse, consisting of approximately 35 acres of prairie and the remainder of timber, ravines, steams. wetlands and a pond.  The center has a pavilion and observation deck. The center is made available upon request to educators, researchers, community groups, businesses, and families to—

  • learn more about the Loess Hills and its fauna and flora, history, archeology, soils, and geology, and enjoy its beauty;
  • study the practical application of green technologies; and
  • provide a learning environment for examining sustainability—the balance of environmental, economic and social concerns needed to provide long term well-being for individuals, organizations and society as a whole.

The center was formally launched in 2009 with the public Hills & Heritage Festival, featuring experts on wildlife, archeology, native plants, and local history who provided on-site lectures and tours to some 400 visitors. It hosts a nonprofit Loess Hills Music Festival ( ) in September of odd years.