A fund created by the estate of Helen Ritter for the management, protection and restoration of four Wisconsin State Natural Areas: Parfrey’s Glen, Caroline Lake, Cassville Bluffs and Pewit’s Nest (2014).
Helen G. Ritter State Natural Areas Fund
A fund created by the estate of Helen Ritter for the management, protection and restoration of four Wisconsin State Natural Areas: Parfrey’s Glen, Caroline Lake, Cassville Bluffs and Pewit’s Nest (2014).