Visitors to the Peak District are being urged to take their rubbish home - as officials revealed the amount of litter dropped has doubled in the warm weather.
As well as being unsightly, items such as glass and plastic are a fire risk on parched moorland.
During a normal year, 60 tonnes of litter is collected from car parks and trails alone.
Bob Young, deputy area team manager for the authority, said: “The vast majority of people enjoying the national park act responsibly.
“However, a few thoughtless individuals carelessly drop litter which damages wildlife habitats.”