Big Tennessee Sinkholes
Tennessee has perhaps millions of sinkholes, most of which are very small features. Based on data analysis from a 2013 sinkhole study (Dunigan/Sutherland 2013) I provide here a list of some of the largest features by dimension in the state. Below you'll find an interactive map, a table with this information, and photographs of some of the sinkholes.
![Overlook, Grassy Cove, Cumberland County, Tennessee 1](https://live.staticflickr.com/567/20441315299_2a60d54a2a_w.jpg)
![Unnamed stream, Bright Sink, Putnam County, Tennessee 2](https://live.staticflickr.com/946/41116318714_32c6aa3568_w.jpg)
* No official place name, named for nearest GNIS feature if nearby.
** Multiple possible names for feature. Made best guess.
Excluded from these lists is Montlake in Hamilton County. It may fit on the volume or depth list, but I cannot easily get at that information since it is flooded. It is a truly spectacular feature. More about Montlake here.
![Map of Grassy Cove, Cumberland County, Tennessee](https://live.staticflickr.com/4589/39101784522_a3b288e5e0_c.jpg)
![Overlook, Grassy Cove, Cumberland County, Tennessee 1](https://live.staticflickr.com/567/20441315299_2a60d54a2a_w.jpg)
![Granddaddy Sink, Big Creek, South Cumberland State Park, Grundy County, Tennessee 1](https://live.staticflickr.com/797/40966283822_f34ce5587b_w.jpg)
![Unnamed stream, Bright Sink, Putnam County, Tennessee 2](https://live.staticflickr.com/946/41116318714_32c6aa3568_w.jpg)
![C1 swallet detail, Spring Creek, Overton County, Tennessee 2](https://live.staticflickr.com/3783/20085691320_273b155a8d_w.jpg)
* No official place name, named for nearest GNIS feature if nearby.
** Multiple possible names for feature. Made best guess.
Excluded from these lists is Montlake in Hamilton County. It may fit on the volume or depth list, but I cannot easily get at that information since it is flooded. It is a truly spectacular feature. More about Montlake here.
![Montlake, Hamilton County, Tennessee 1](https://live.staticflickr.com/1470/26456672732_090f0e07d0_c.jpg)
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