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United States, Recreation and Tourism, Resource Management
Contents: President's Bulletin / Thomas H. Gibson -- VI. Annual NCA Convention: Pennsylvania -- Current Status of Hwy. Beaut. Situation / Jack Herschend. Down Underis a publication of the National Caves Association, a non-profit trade association founded in 1965 by a small group of private show cave owners. These initial members sought to bring together show cave owners and operators from across the United States to promote the show cave industry to the public, to share information and ideas, and to lobby for legislation favorable to the show cave industry. Open Access - Permission by Publisher Vol. 6, no. 2 (October 1971) See Extended description for more information.
Recreation and Tourism; Resource Management
National Cave Associates, "Down Under" (1971). Down Under. 17.