Editing Grundy County, Tennessee (section)

===Natural features===
Grundy County contains much of the [[Fiery Gizzard Trail]], renowned for scenic beauty and diversity.<ref name="SecretFalls">{{cite web | url=http://www.secretfalls.com/hiking/215-fiery-gizzard-trail | title=Fiery Gizzard Trail: Difficult but interesting overnight trail along Fiery Creek Gorge | work=Secret Falls | access-date=July 8, 2012}}</ref>

'''Wonder Cave''' is located on the north side of Layne's Cove at the foot of the Cumberland Plateau. It was discovered in 1897 by Robert A. Nelson, Melville Anderson, and Will Fitzgerald, who crawled into a small opening next to a large, well-known spring. In 1898, the cave was purchased by R. M. Payne who enlarged the small opening, built trails, and opened the cave to the public as a commercial cave. Wonder Cave was a major tourist attraction for nearly 80 years, but construction of the Interstate Highway system diverted tourists away from the old, main highway, Highway 41, and the cave eventually closed.<ref>Thomas C. Barr, Jr.,  "Caves of Tennessee", 1961, pages 234-241. This description includes a detailed map and several photographs.</ref>