Georgia. Department of Natural Resources. State Parks and Historic Sites. "Geo-challenge passport: go for an outdoor adventure." University of Georgia. Map and Government Information Library. 2017, https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bn200-pp2-bm1-b2017-bg4-belec-p-btext.

Georgia. Department of Natural Resources. State Parks and Historic Sites (2017). Geo-challenge passport: go for an outdoor adventure. Retrieved from https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bn200-pp2-bm1-b2017-bg4-belec-p-btext

Georgia. Department of Natural Resources. State Parks and Historic Sites. "Geo-challenge passport: go for an outdoor adventure." 2017. August 10, 2025. https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bn200-pp2-bm1-b2017-bg4-belec-p-btext.