|
|
Name
|
Image
|
Date
|
Location
|
County
|
Ownership
|
Description
|
| 1
|
Anderson Goose Lake
|
|
1975
|
42°18′56″N 93°37′26″W / 42.315556°N 93.623889°W / 42.315556; -93.623889 (Anderson Goose Lake)
|
Iowa
|
Private
|
One of the few essentially natural glacial pothole lakes remaining in Iowa.
|
| 2
|
Cayler Prairie
|
|
1965
|
43°23′50″N 95°14′38″W / 43.397222°N 95.243889°W / 43.397222; -95.243889 (Cayler Prairie State Preserve)
|
Dickinson
|
State
|
An example of the increasingly rare virgin prairie grassland.
|
| 3
|
Cold Water Cave
|
|
1987
|
43°26′28″N 91°57′37″W / 43.44111°N 91.96028°W / 43.44111; -91.96028 (Cold Water Spring State Preserve)
|
Winneshiek
|
Private
|
An exceptional example of an extensive cave system well decorated with speleothems.
|
| 4
|
Dewey's Pasture and Smith's Slough
|
|
1975
|
|
Clay, Palo Alto
|
State
|
Pothole lakes created during the last glacial epoch.
|
| 5
|
Hayden Prairie State Preserve
|
|
1965
|
43°26′22″N 92°22′59″W / 43.4395°N 92.3831°W / 43.4395; -92.3831 (Hayden Prairie State Preserve)
|
Howard
|
State
|
A true prairie remnant.
|
| 6
|
Loess Hills
|
|
1986
|
41°48′05″N 95°59′42″W / 41.8013°N 95.995°W / 41.8013; -95.995 (Loess Hills)
|
Harrison, Monona
|
State, private
|
The best examples of loess topography in the Missouri River Bluffs region.
|
| 7
|
White Pine Hollow State Forest
|
|
1967
|
42°37′47″N 91°06′43″W / 42.62971°N 91.11207°W / 42.62971; -91.11207 (White Pine Hollow State Forest)
|
Dubuque
|
State
|
The only known remaining white pine tract in Iowa.
|
