At trout parks in Missouri, a horn sounds early in the day to announce the starting of fishing and at the end of the day to alert patrons that fishing has concluded. I'm fishing at Roaring River State Park near Cassville, Missouri. Please visit my merch store at https://teespring.com/stores/the-show... and my Etsy store at https://www.etsy.com/shop/TheShowMeFl... .