It's not just the backcountry that has a litter problem. People drive to our local parks and can't manage to take their trash home with them. If the city-provided trash cans are full, they just toss it nearby. 

Sunday morning there were huge rubbish piles all along the river bike paths, some near trash cans and others near places where people go down and swim (and drink and whatever). 

The city's Parks and Open Space department now has to pay people to clean up this mess every morning. Unfortunately, they don't venture off the path to get what blew away (or was dumped on the shore). I wouldn't be surprised if these same litterbugs don't also complain about rampant government waste while they cause this extra unnecessary (but for their actions) government expense.