File Hagerman Swamp Box 10 In: Michigan Natural Areas Council Records, 1938-2006 (majority within 1952-1990) » Site Files, undated, 1934-1989
File Hampton Creek Wetland Complex, 1979 Box 10 In: Michigan Natural Areas Council Records, 1938-2006 (majority within 1952-1990) » Site Files, undated, 1934-1989
File Hartwick Pines, 1951 Box 10 In: Michigan Natural Areas Council Records, 1938-2006 (majority within 1952-1990) » Site Files, undated, 1934-1989
File Haven Hill (Highland Recreation Area) Box 10 In: Michigan Natural Areas Council Records, 1938-2006 (majority within 1952-1990) » Site Files, undated, 1934-1989
File Heritage Park Box 10 In: Michigan Natural Areas Council Records, 1938-2006 (majority within 1952-1990) » Site Files, undated, 1934-1989
File Hessel Area, 1961 Box 10 In: Michigan Natural Areas Council Records, 1938-2006 (majority within 1952-1990) » Site Files, undated, 1934-1989
File High and Hog Islands Box 10 In: Michigan Natural Areas Council Records, 1938-2006 (majority within 1952-1990) » Site Files, undated, 1934-1989
File Highland Cemetery Prairie Box 10 In: Michigan Natural Areas Council Records, 1938-2006 (majority within 1952-1990) » Site Files, undated, 1934-1989
File Highlands (Oakland County) Box 10 In: Michigan Natural Areas Council Records, 1938-2006 (majority within 1952-1990) » Site Files, undated, 1934-1989
File Highlands of Sleeping Bear Dunes, 1977-1978 Box 10 In: Michigan Natural Areas Council Records, 1938-2006 (majority within 1952-1990) » Site Files, undated, 1934-1989