Welcome to the Lesser Known, where we tell you anything from strange occurrences that happened to interesting facts about common places around the world.

In this episode I go over the mysterious sinkholes of Mt. Baldy, singing sand dunes, little known facts about Lake Michigan, antifreeze frogs, and carnivorous plants located in Indiana Dunes National Park.

Sources:

• National Parks after dark Podcast

• Bob and Sue podcast

• https://www.indianadunes.com/blog/post/dunes-101-did-you-know/

• https://outdoors.com/5-things-you-didnt-know-about-indiana-dunes-national-park/

• https://www.indystar.com/story/news/2019/02/15/indiana-dunes-becomes-national-park-after-century-long-effort/2882357002/

• https://www.panish.law/nevada/deaths-in-us-national-parks/

• http://npshistory.com/morningreport/incidents/indu.htm

• https://www.nps.gov/indu/index.htm

• https://www.nationalparked.com/indiana-dunes/visitation-statistics

• https://www.atlasobscura.com/places/mysterious-sinkholes-of-mt-baldy

• https://www.smithsonianmag.com/science-nature/mystery-why-dangerous-sand-dune-swallowed-boy-180953404/

• https://www.iflscience.com/the-mystery-of-how-a-sand-dune-sinkhole-swallowed-a-child-on-mount-baldy-69169

• https://www.iflscience.com/the-mystery-of-how-a-sand-dune-sinkhole-swallowed-a-child-on-mount-baldy-69169

• https://www.smithsonianmag.com/science-nature/mystery-why-dangerous-sand-dune-swallowed-boy-180953404/

• https://www.atlasobscura.com/places/mysterious-sinkholes-of-mt-baldy

• https://www.indianadunes.com/explore-the-dunes/indiana-dunes-state-park/3-dune-challenge/

• https://www.panish.law/nevada/deaths-in-us-national-parks/

• https://www.google.com/search?q=singing+sand+dunes+of+indiana&rlz=1C1ONGR_enUS1072US1073&oq=singing+sand+dunes+of+indiana&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIHCAEQIRifBdIBCDcxNjRqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8

• http://npshistory.com/morningreport/incidents/indu.htm

• https://www.insidescience.org/news/strange-holes-indiana-dunes-americas-newest-national-park

• https://thefroglady.org/2018/02/19/frogs-and-toads-of-indiana/

• https://www.onlyinyourstate.com/indiana/singing-sand-dunes-in/

• https://koa.com/campgrounds/muskegon/blog/-interesting-and-fun-facts-about-lake-michigan_f0c82018-a446-4686-98de-ec4c767f5ae1/

• https://www.wanderingeducators.com/best/stories/shipwrecks-great-lakes-lake-michigan-triangle