Public Sites
| State | County | Name |
|---|---|---|
| Iowa | Johnson | Lone Tree |
| Iowa | Louisa | Long Creek @ X-37 |
| Iowa | Des Moines | Long Creek Dam Area |
| Iowa | Franklin | Longdpun Habitat Area - Lukes Wetland |
| Iowa | Scott | Lost Grove Lake |
| Iowa | Palo Alto | Lost Island County Park |
| Iowa | Clinton | Lost Nation Public Hunting Area |
| Iowa | Louisa | Louisa County |
| Florida | Lee | Lover's Key State Park |
| Iowa | Monroe | Lovilia |
| Iowa | Polk | Lovington |
| Iowa | Linn | Lowe Park |
| Iowa | Dickinson | Lower Gar Lake outlet |
| Nebraska | Otoe | Lower Hamburg Bend Wildlife Management Area |
| Iowa | Howard | Lubbert Park |
| Iowa | Lucas | Lucas County |
| Iowa | Lucas | Lucas Park |
| Iowa | Winneshiek | Ludwig Park - Trout |
| Iowa | Winneshiek | Ludwig Preserve |
| Iowa | Ida | Lund Creek @ 280th Street |
| Iowa | Ida | Lund Creek @ Eagle Ave |
| Iowa | Pocahontas | Lundberg Slough |
| Wyoming | Niobrara | Lusk |
| Iowa | Winneshiek | Luther College |
| Iowa | Winneshiek | Luther College Baker Village |