With over 52 million acres, the US National Park system is home to some of the most breathtaking natural features on the planet. Ten's of millions enjoy these parks every year.  Join us this week for an installment of, “National Park Cold Cases” as we explore Yosemite National Park.  Cases covered in this episode: David Paul Morrison, Walther Reinhard, & George Penca.  (Episode 92)Learn more about Locations Unknown: https://linktr.ee/LocationsUnknown  New Patron Shoutouts - Jake Davis, Elizabeth Parker, Shannon Armstrong.  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 (Currently a backlog of 41 additional episodes), 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)  All our Patreon only content (Audio & Video) can now be accessed via Spotify.  (Active subscription to our Patreon channel is required.) -- Locations Unknown Subscriber Only Show | Podcast on Spotify  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.