Adams County
Adams County reveres the name of Gene Stratton Porter, who lived around here and wrote some books that were part fiction and part nature writing, like Girl of the Limberlost ; she was also a noted nature photographer. Two of the three nature preserves listed follow this theme; Loblolly Marsh is a remnant of the huge Limberlost Swamp, and Munro Nature Preserve (also a Limberlost remnant) includes land once owned by Porter and an old school mentioned in one of her books. Baltzell-Lenhart Woods is a small property apparently not connected in any way with Porter or her books.
Loblolly Marsh (this is actually in Jay County, as far as I can tell, but we'll give it to Adams also)