The following is a list of the OIW or Outstanding Iowa Waters (previously listed as “High Quality or HQ streams”). Each map can have one or multiple streams within the same map.
| Outstanding Iowa Waters | County | *.pdf |
| Baron Springs |
Clayton |
 |
| Bear Creek |
Benton, Buchanan |
 |
| Bloody Run |
Clayton |
 |
| Brownfield Creek |
Clayton |
 |
| Clear Creek |
Allamakee |
 |
| Deer Creek |
Worth |
 |
| Dousman Creek |
Allamakee |
 |
| Duck Creek |
Allamakee |
 |
| Ensign Creek |
Allamakee |
 |
| Unnamed Creek (aka Erickson Spring Branch) |
Allamakee |
 |
| French Creek |
Allamakee |
 |
| Grannis Creek |
Fayette |
 |
| Jones Creek |
Allamakee |
 |
| Kleinlein Creek |
Clayton |
 |
| Lime Creek |
Buchanan |
 |
| Little Paint Creek |
Allamakee |
 |
| Ludlow Creek |
Allamakee |
 |
| Mill Creek (aka Big Mill Creek) |
Jackson |
 |
| Mossey Creek |
Clayton |
 |
| North Bear Creek |
Winneshiek |
 |
| Pine Creek (aka South Pine Creek) |
Winneshiek |
 |
| Smith Creek |
Winneshiek |
 |
| South Canoe Creek |
Winneshiek |
 |
| Spring Branch Creek |
Delaware |
 |
| Storybook Hollow |
Jackson |
 |
| Trout Run |
Allamakee |
 |
| Twin Springs Creek |
Winneshiek |
 |
| Unnamed Creek (aka Cold Water Creek) |
Winneshiek |
 |
| Unnamed Creek (aka S. Fk. Big Mill) |
Jackson |
 |
| Village Creek |
Allamakee |
 |
| Waterloo Creek |
Allamakee |
 |
| West Branch French Creek |
Allamakee |
 |
| Outstanding Iowa Waters - Iowa Great Lakes | County | *.pdf |
| Big Spirit Lake |
Dickinson |
 |
| East Okoboji, Lower & Upper Gar, Minnewashta Lake |
Dickinson |
 |
| East Okoboji Lake |
Dickinson |
 |
| West Okoboji Lake |
Dickinson |
 |
|