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| Lighthouse |
| Metro and City Park |
| National Forest |
| National Historic Landmark |
| National Historic Site |
| National Historical Park |
| National Memorial |
| National Park |
| National Recreation Area |
| National Seashore |
| National Wildlife Area |
| National Wildlife Refuge |
| State Fish Hatchery |
| State Fishery Area |
| State Forest |
| State Historic Site |
| State Memorial |
| State Natural Area |
| State Nature Preserve |
| State Nursery |
| State Park |
| State Preserve |
| State Recreation Area |
| State Reserve |
| State Wildlife Area |
| State Wildlife Management Area |
| State Wildlife Refuge |
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| Bellevue State Park | State Park | 17.7 | Bellevue | Iowa |
| Maquoketa Caves State Park | State Park | 24.6 | Maquoketa | Iowa |
| First Capitol State Park | State Park | 25.5 | Belmont | Wisconsin |
| White Pine Hollow State Park | State Park | 27.1 | New Vienna | Iowa |
| Indian Bluffs Wildlife Mgmt Area | State Wildlife Management Area | 27.9 | Cascade | Iowa |
| Nelson Dewey State Park | State Park | 28.4 | Cassville | Wisconsin |
| Apple River Canyon State Park | State Park | 29.3 | Apple River | Illinois |
| Dalton Pond State Fishing Access Area | State Park | 31.8 | Preston | Iowa |
| Mississippi Palisades State Park | State Park | 32.4 | Savanna | Illinois |
| Ayers Sand Prairie State Nature Preserve | State Nature Preserve | 38.6 | Savanna | Illinois |