Cordell, H. K., Betz, C. J., & Green, G. T. (2008). Nature-based outdoor recreation trends and wilderness. International Journal of Wilderness, 14(2), 7-13.
Dorwart, C. E., Moore, R. L., & Leung, Y. F. (2009). Visitors’ perceptions of a trail environment and effects on experiences: A model for nature-based recreation experiences. Leisure Sciences, 32(1), 33-54.
Higgins-Desbiolles, F. (2006). More than an “industry”: The forgotten power of tourism as a social force. Tourism Management, 27(6), 1192-1208.
Kuenzi, C., & McNeely, J. (2008). Nature-based tourism. In Global Risk Governance (pp. 155-178). Springer Netherlands.
Wood, S. A., Guerry, A. D., Silver, J. M., & Lacayo, M. (2013). Using social media to quantify nature-based tourism and recreation. Scientific reports, 3.
Outdoor Afro website and Facebook page
Exploring on a New Level – The Shield
Recreation: National Geographic Program Teaches Students Value of National Park Stewardship – The Salt Lake Tribune
Kentucky State Parks Busy with Winter Season Activities – News Democrat Leader
Videos and Simulations