The 31st of August is Trail Mix Day.
Mix up your own trail mix, or buy it already mixed.
Other sources say that Trail Mix Day is the 13th August, and that 31st August is “Eat Outside Day.”
Though more people plump for today as being Trail Mix Day, you could satisfy all factions by eating your trail mix outside.
The earliest print mention that CooksInfo is aware of for a Trail Mix Day in August dates from 2001 in San Francisco:
“31: National Trail Mix Day. Isn’t that stuff also known as gorp? Our reaction to it, exactly.” — Morse, Debby. August. National Month Month. San Francisco, California: The San Francisco Examiner. Wednesday, 1 August 2001. Page C3, col. 2.