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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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| Oak Grove State Park | State Park | 18.2 | Hawarden | Iowa |
| Buckskin Hills Wildlife Mgmt Area | State Wildlife Management Area | 21.8 | Newcastle | Nebraska |
| Ponca State Park | State Park | 22.9 | Ponca | Nebraska |
| Newton Hills State Park | State Park | 23.1 | Canton | South Dakota |
| Stone State Park | State Park | 30.6 | Sioux City | Iowa |
| Bigelow State Park | State Park | 48.3 | Salix | Iowa |
| Mill Creek State Park | State Park | 56.3 | Paullina | Iowa |
| Badger Lake Wildlife Mgmt Area | State Wildlife Management Area | 60.6 | Whiting | Iowa |
| Blue Mounds State Park | State Park | 61.8 | Luverne | Minnesota |
| Niobrara State Park | State Park | 66.4 | Niobrara | Nebraska |