Public Sites
| State | County | Name |
|---|---|---|
| Iowa | Taylor | Taylor County |
| Iowa | Howard | Taylor Pond Park |
| Iowa | Story | Tedesco Environmental Learning Corridor |
| Iowa | Palo Alto | Telford Prairie |
| Iowa | Dickinson | Templar State Recreation Area |
| Iowa | Polk | Terra Park |
| Iowa | Washington | Terrace Lake |
| Iowa | Johnson | Terrell Mill Park |
| Iowa | Johnson | Terry Trueblood Recreation Area |
| Iowa | Union | Thayer Lake Park |
| Iowa | Union | Thayer, Sand Pit |
| Iowa | Clinton | The Canticle |
| South Carolina | Jasper | The Oaks at Point South RV |
| Iowa | Fayette | Thelman Wildlife Area |
| Minnesota | Pennington | Thief River Falls |
| Iowa | Polk | Thomas Mitchell Park |
| Iowa | Linn | Thomas Park, Marion |
| Iowa | Winnebago | Thorpe Park |
| Iowa | Monroe | Thousand Acres |
| Iowa | Dickinson | Three Corner Pond |
| Iowa | Buena Vista | Three Waters Wildlife Area |
| Iowa | Black Hawk | Thunder Woman County Park |
| Iowa | Johnson | Tiffin |
| Iowa | Monona | Timber Ridge Ranch |
| Iowa | Marshall | Timmons Grove Park |