This subseries consists of five folders of correspondence kept by Dr. and Mrs. Koch-- mainly with government officials, environmental grouups such as the National Wildlife Federation, and the press. Most of the letters are pleas to understand the plight of the Mineral King valley during the years in which Disney Productions was attempting to obtain the land to build a resort. There is much corrspondence between Mrs. Koch and the National Wildlife Federation concerning the latter's stance on the proposed Mineral King development.