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mostateparks.com
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«Taum Sauk Section». The Ozark Trail. Ozark Trail Association. Arxivat de l'original el de maig 4, 2018. [Consulta: September 8, 2014].
«St. Francois Mountains». Missouri Department of Conservation. Conservation Commission of Missouri. Arxivat de l'original el de setembre 8, 2014. [Consulta: September 8, 2014].