It’s pretty simple — leave no trace. But at least one person didn’t get the message and left behind a bag of Cheetos at Carlsbad Caverns National Park during a visit earlier this summer.

A simple bag of Cheetos is responsible for causing a major issue at a national park in New Mexico that has park officials calling out those who break the rules.

The government agency overseeing all 63 of the country’s national parks has previously released statistics showing that it sorts through an average of 70 million pounds of garbage a year, while a spike in visitor numbers post-pandemic has exacerbated the problem.