The Queen’s private estate has criticised litter louts who left such a mountain of rubbish in a bothy it took three trips by one of Her Majesty’s Land Rovers to remove the mess.
The estate posted a picture of some of the rubbish it collected from the shelter to shame those responsible.
And it issued a plea to those using bothies to leave them clean and tidy.
In a statement Balmoral Estate said: “This week we removed three Land Rover fulls of rubbish from just one of the bothies on the estate.
“If you stay in a bothy please remove all of your rubbish at the end of your stay – including food, sleeping bags, clothes, tents and shopping trolleys.
“The majority of this rubbish was left by just one group.”
Last year, the 55,000-acre estate attacked “thoughtless litter louts” who turned an emergency hillside shelter into a tip.
Officials at Balmoral even took to Facebook to vent their anger over the litter at Davy’s Bourach.
It was built as an emergency shelter in 1966 by the famous hill man Davy Glen.
The estate previously also posted pictures revealing the amount of rubbish being dumped on Lochnagar, the mountain nestled in the Grampians, which dominates the royal estate.
Just days ago the Mountain Bothies Association (MBA) said it was concerned about the increasing number of businesses using the shelters.
Bothies are found throughout the Highlands, with most of them maintained by the MBA
They are free, but users are asked to follow a “bothy code”, which prohibits the use of the buildings by commercial groups.
Many bothies were estate buildings originally built for stalking parties or gamekeepers, but are now popular with hillwalkers and climbers.
The MBA was formed in 1965 and looks after about 100 bothies throughout the UK.
The charity said there were a “number of reasons” why commercial use of bothies – for example by guided tours or adventure holidays – could damage the interests of other bothy users.
Balmoral is owned by the Queen and costs £3million-a-year to run – half of which comes from opening it as seasonal tourist attraction.
