This is the emotional moment a dog missing for eleven days was safely reunited with her owners after heroic firefighters hoisted her from a mine. Echo, a coonhound, had accidentally entered the disused mine system underneath Sodalis Nature Preserve, near Hannibal, Missouri, before getting lost in its intricate tunnels. Her distraught owners had almost given up hope of seeing her again when a dog walker posted on Facebook that they thought they had spotted a dog down a mineshaft. Kind-hearted parks and recreation worker Mary Lynne Richards decided to check it out for herself, taking her dog with her to investigate. She discovered Echo was indeed at the bottom of a mineshaft now covered by a special bat gate - used to protect the endangered Indiana bats living in the mines. After aborting her own rescue mission for safety reasons, Mary Lynne quickly called firefighters who sent a six-person team to help free Echo. They spent three hours freeing Echo before she was back in the arms of her loving owners.