Georgia. Parks and Historic Sites Division. "Geo-challenge passport : go for an outdoor adventure." University of Georgia. Map and Government Information Library. 2010, https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bn200-pp2-bm1-b2010-bg4-belec-p-btext.

Georgia. Parks and Historic Sites Division (2010). Geo-challenge passport : go for an outdoor adventure. Retrieved from https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bn200-pp2-bm1-b2010-bg4-belec-p-btext

Georgia. Parks and Historic Sites Division. "Geo-challenge passport : go for an outdoor adventure." 2010. July 29, 2025. https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bn200-pp2-bm1-b2010-bg4-belec-p-btext.