List of National Natural Landmarks in Oklahoma

From List of National Natural Landmarks, these are the National Natural Landmarks in Oklahoma. There are 3 in total.

	Name	Image	Date	Location	County	Description
1	Devil's Canyon		01974-12-01-0000December 1974		Canadian	Known for several different mesic plants in a diverse environment of oak woodland/tall prairie grass and eastern deciduous forest
2	McCurtain County Wilderness Area		01974-12-01-0000December 1974	Broken Bow 34°16′55″N 94°41′48″W / 34.281971°N 94.696655°W / 34.281971; -94.696655 (McCurtain County Wilderness Area)	McCurtain	A 14,087 acres (57.01 km2) wilderness nature preserve since 1918. It is an excellent example of a xeric upland oak-pine forest
3	Salt Plains National Wildlife Refuge		01983-06-01-0000June 1983	Jet 36°45′01″N 98°13′27″W / 36.750314°N 98.224259°W / 36.750314; -98.224259 (Salt Plains National Wildlife Refuge)	Alfalfa	A 32,000-acre (130 km2) National Wildlife Refuge, it is a critical habitat for 75% of the endangered Whooping Crane population.