grsm65415 Light trails of Synchronous fireflies, Elkmont, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65415.html grsm65379 View from Cataloochee Overlook at night, North Carolina. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65379.html grsm65428 Synchronous lightning bugs (Photinus carolinus), late evening, Elkmont, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65428.html grsm65938 Synchronous lightning fireflies (Photinus carolinus), late evening, Elkmont, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65938.html grsm65414 Light trails of Synchronous and Blue Ghost fireflies, Elkmont, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65414.html grsm65397 Fireflies light trails over steep hill, Elkmont, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65397.html grsm65432 Light bugs in forest, Elkmont, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65432.html grsm65427 Synchronous fireflies (Photinus carolinus), early evening, Elkmont, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65427.html