List of National Natural Landmarks in Iowa

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There are 7 National Natural Landmarks in Iowa.

Iowa National Natural Landmarks (clickable map)

Name	Date	Location	County	Ownership	Description
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.
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.
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.
Dewey's Pasture and Smith's Slough	1975	43°11′33″N 94°55′45″W / 43.19250°N 94.92917°W / 43.19250; -94.92917	Clay, Palo Alto	State	Pothole lakes created during the last glacial epoch.
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.
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.
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.

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