Public Sites
| State | County | Name |
|---|---|---|
| Iowa | Kossuth | Irvington Gravel Pits |
| California | Orange | Irvine Regional Park |
| Iowa | Benton | Irvine Prairie |
| Iowa | Cass | Iranistan Rock Quarry Park |
| Iowa | Pottawattamie | IPL Ponds |
| Iowa | Washington | Iowa Township Park |
| Iowa | Johnson | Iowa River Trail, Iowa City |
| Iowa | Johnson | Iowa River Landing Wetland Park |
| Iowa | Johnson | Iowa River Dam in Iowa City |
| Iowa | Iowa | Iowa River Corridor Wildlife Area |
| Iowa | Dickinson | Iowa Lakeside Laboratory |
| Iowa | Osceola | Iowa Lake State Game Management Area |
| Iowa | Hardin | Iowa Falls |
| Iowa | Iowa | Iowa County |
| Iowa | Johnson | Iowa City Site 1 |
| Iowa | Johnson | Iowa City |
| Iowa | Boone | Iowa Arboretum |
| Iowa | Chickasaw | Ionia |
| Iowa | Franklin | Interstate Park Pond |
| Iowa | Mitchell | Interstate Park |
| Wisconsin | Sauk | International Crane Foundation |
| Iowa | Sioux | Inspiration Hills |
| Iowa | Story | Inis Grove Park, Ames |
| Iowa | Emmet | Ingham Lake State Game Management Area |
| Iowa | Polk | Indianola Hills |