File Environmental, Teach-in U of M Box 181 In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Subject files, 1959-1976 » 1969 » Natural Resources » Conservation
File Fish and Wildlife Box 182 In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Subject files, 1959-1976 » 1969 » Natural Resources » Conservation
File Oil Drilling in Lake Erie Box 182 In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Subject files, 1959-1976 » 1969 » Natural Resources » Conservation
File Pictured Rocks 2 folders Box 182 In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Subject files, 1959-1976 » 1969 » Natural Resources » Conservation
File Sylvania Tract Box 182 In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Subject files, 1959-1976 » 1969 » Natural Resources » Conservation
File Federal Water Pollution Commission Box 182 In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Subject files, 1959-1976 » 1969 » Natural Resources
File Lake Levels Box 182 In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Subject files, 1959-1976 » 1969 » Natural Resources
File Lake Restoration, Messenger -- Hodunk Chain of Lakes Box 182 In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Subject files, 1959-1976 » 1969 » Natural Resources
File Michigan Dept. of Natural Resources Box 182 In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Subject files, 1959-1976 » 1969 » Natural Resources
File National Forest, Ottawa, Sylvania Tract Box 182 In: Philip A. Hart papers, 1949-1976 (majority within 1959-1976) » Subject files, 1959-1976 » 1969 » Natural Resources