Tippecanoe County
My current home county. In spite of the total lack of any coherent planning on zoning or development (the county government has been in the same hands for generations, and mostly sleeps through meetings, waking up only to rubber-stamp the next housing development or industrial tax abatement) the county still has some worthwhile natural areas - most of them bordering housing developments or Wal-marts, of course. The Wabash and Tippecanoe Rivers meet here, and the Wildcat Creek is a great canoeing stream. Also, the Wabash Heritage Trail traverses a good part of the county.