June 14th, 1969.  A young boy sets off on a camping trip with family in the Great Smoky Mountains.  On the second day, a group of kids, including the young boy, decided to play a prank on the adults by hiding in the woods next to the campground.  After less than five minutes, the group of kids returned but the boy was nowhere to be found.  In the following weeks, the largest search and rescue operation in NPS history (to this day) failed to find any clues as to what happened.  Join us this week as investigate the puzzling disappearance of Dennis Martin.  (Episode 71)New Patreon Shout outs - Ceci Butler, Spencer Hanson, Felisa Acevedo, Megan Lord, Nikki Diaz, Trista Shah, Kate Roadnight Brooks, Peter Fitzsimmons, Jeannine K Manny, Claire Summers, Alexa Willis, & Leigh DyerEpisode suggestion shoutout: Derrick Lawson  Want to help the show out and get even more Locations Unknown content!  For as little as $5 a month, you can become a Patron of Locations Unknown and get access to our episodes two days before release, special Patreon only episode, free swag, swag contests, your picture on our supporter wall of fame, our Patreon only Discord Server, and discounts to our Locations Unknown Store!  Become a Patron of the Locations Unknown Podcast by visiting our Patreon page.  (https://www.patreon.com/locationsunknown)  Want to call into the show and leave us a message?  Now you can!  Call 208-391-6913 and leave Locations Unknown a voice message and we may air it on a future message!  View live recordings of the show on our YouTube channel: Locations Unknown - YouTube  Want to advertise on the podcast?  Visit the following link to learn more.  Advertise on Locations Unknown  Learn about other unsolved missing persons cases in America's wilderness at Locations Unknown.  Follow us on Facebook & Instagram.  Also check us out on two new platforms - Pocketnet & Rumble.  You can view sources for this episode and all our previous episodes at: Sources — Locations UnknownBecome a supporter of this podcast: https://www.spreaker.com/podcast/locations-unknown--6183838/support.