There are 36 domed rocks shoulder to shoulder forming deep valleys and steep-sided gorges.

BBC: Lonely Planet's top 10 in Australia's Northern Territory

Mr Smith fell out of his canoe as he navigated his way down a steep-sided gorge.

BBC: Tribute to 'brilliant' canoeist Dave Smith

We set off from Sankri on a wide, stone-paved track that ran north into a steep-sided valley.

WSJ: Trekking the Har Ki Doon Trail in India's Himalayas

As the wide sweep of the Neretva river runs down from the high ground, it enters the city of Mostar where it narrows between steep-sided river banks.

BBC: The new Mostar bridge

During the last Ice Age, glaciers moving south carved deep gullies in reddish granite, creating a series of parallel steep-sided mountains interspersed with finger lakes as well as one fjord well, a fjard, actually.

FORBES: Harmony In The State Of Maine

Golitha Falls, a nature reserve on the edge of the moor, is "an area of woodland occupying a steep-sided valley gorge, with the River Fowey flowing through it in a series of spectacular cascades", according to Natural England.

BBC: Warning after Cornwall canoe river death

Number One Court can often produce an intense atmosphere but, on a roasting hot day in Paris, the match began with the steep-sided stands half empty as spectators went in search of shade and refreshment after the preceeding men's match.

BBC: Anne Keothavong falls at first French Open hurdle

They were also required to carry all their equipment for the duration of the ultra-marathon -- from food and sleeping gear to an anti-venom pump and glow sticks -- as they battled with weariness and dehydration whilst snaking their way past rolling dunes, steep-sided uplands, dried-up lakes and abandoned settlements in the hostile heat.

CNN: Winners survive 'toughest race on Earth'

Edinburgh is home to two Unesco World Heritage Sites separated by the steep-sided greenery of the Princes Street Gardens: the Old Town with its imposing Castle Rock and Royal Mile, and the New Town, just a bit younger than Old Town, with a posh Georgian grid laid out in the late 18th and early 19th Centuries.

BBC: Living in: Edinburgh