IL | DuPage | Belmont Prairie | Old Route | 9 | 18 | 1998 |
IL | Cook | Bergman Slough | Main Route | 8 | 30 | 1998 |
IL | Cook | Black Partridge Woods | Old Route | 9 | 37 | 1998 |
IL | Cook | Bluff Spring Fen | Main Route | 8 | 36 | 1998 |
IL | Champaign | Buffalo Trace | South Route | 5 | 24 | 1998 |
IL | Kane | Burlington Prairie | Old North Route | 6 | 20 | 1998 |
IL | Cook | Camp Sagawau | Main Route | 23 | 34 | 1998 |
IL | Cook | Cap Sauers | Main Route | 5 | 37 | 1998 |
IL | Cook | Chicago Botanic Gardens | Old Prairie Route | 8 | 16 | 1998 |
IL | Cook | Dan McMahon | Main Route | 9 | 35 | 1998 |
IL | Kane | Dick Young | Nelson Lake Marsh | 6 | 27 | 1998 |
IL | Coles | Douglas-Hart Nature Center | Main Route | 1 | 6 | 1998 |
IL | Cook | Gensburg-Markham Prairie | Main Route | 4 | 26 | 1998 |
IL | Cook | Harms Woods | East Route | 5 | 15 | 1998 |
IL | Cook | Hidden Pond | Main Route | 8 | 21 | 1998 |
IL | Kane | Horlock Hill | Old Route | 4 | 13 | 1998 |
IL | Lake | Illinois Beach State Park | Dead River Trail | 9 | 27 | 1998 |
IL | Lake | Illinois Beach State Park | Dunes Trail | 5 | 29 | 1998 |
IL | LaSalle | Matthiessen State Park | Vermillion River | 12 | 36 | 1998 |
IL | Cook | McClaughry Springs Woods | Old Route | 2 | 9 | 1998 |
IL | Cook | Poplar Creek | Shoe Factory Road | 12 | 19 | 1998 |
IL | Will | Romeoville Prairie | Main Route | 3 | 13 | 1998 |
IL | McHenry | Sands Main Street Prairie | Old Route | 3 | 9 | 1998 |
IL | Montgomery | Shoal Creek Barrens | Main Route | 9 | 47 | 1998 |
IL | Cook | Somme | Prairie Grove | 8 | 27 | 1998 |
IL | Cook | Spears Woods | Main Route | 6 | 25 | 1998 |
IL | Cook | Sundrop Prairie | Main Route | 15 | 23 | 1998 |
IL | Whiteside | Thomson-Fulton Sand Prairie | Main Route | 3 | 10 | 1998 |
IL | Cook | Turnbull Woods | Main Route | 15 | 26 | 1998 |
IL | Lake | Wadsworth Prairie | Main Route | 8 | 21 | 1998 |
IL | DuPage | West Chicago Prairie | Old Route | 5 | 20 | 1998 |