List of National Natural Landmarks in Arkansas

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From List of National Natural Landmarks, these are the National Natural Landmarks in Arkansas. There are 5 in total, 4 are forests, 1 is other (spring).

Name Image Date Location County Description
1 Big Lake Natural Area 1974 Mississippi Forest area within Big Lake National Wildlife Refuge.[1]
2 Lake Winona Research Natural Area 1976 Saline Pine forest near Lake Winona, water supply lake on Alum Fork of Saline River.[2][3]
3 Mammoth Spring Mammoth spring (47).JPG June 1972 Mammoth Spring 36°29′52″N 91°32′09″W / 36.4978°N 91.5359°W / 36.4978; -91.5359 (Mammoth Spring) Fulton The largest first magnitude spring in Arkansas, it is connected underground to another Natural Landmark, the Grand Gulf State Park in Missouri.
4 Roaring Branch Research Natural Area 1976 Polk [4]
5 White River Sugarberry Natural Area 1974 Desha [5]