Residents took to social media to share photographs of an anomalous cloud-like trail over Lazy Mountain.
An experienced hiker became fearful for their life after being followed by an unidentified creature in the Cascade Mountains.
Scientists believe that they have finally found an answer to one of the 20th Century's most enduring mysteries.
Paramedics are hoping to use jet suits to quickly reach patients in some of the UK's most inaccessible areas.
Forrest Fenn, who famously hid a cache of valuables in the Rocky Mountains, died on Monday at his home.
Japan's answer to the legendary cryptid was first sighted during a mountain drive one night 50 years ago.
Hidden somewhere in the Rocky Mountains, the mysterious treasure has claimed many lives.
A very unusual bear has been captured on film in Banff National Park in Canada's Rocky Mountains.
Melting ice in Norway has revealed a long-lost Viking-era mountain pass brimming with archaeological discoveries.
A large hairy humanoid sighted in the Turkey Mountain area has turned out to be a man wearing a costume.
Visitors to the Turkey Mountain Urban Wilderness Area have been reporting sightings of a strange creature.
Said to be hidden somewhere in the Rocky Mountains, the treasure is believed to be worth over $2 million.
The discovery of a large feline print in the Blue Mountains has reignited speculation of a mystery big cat.
This distinctive disc-shaped cloud formation was recently photographed by a worker in the Cascade Mountains.
A freak accident has resulted in the deaths of four rare mountain gorillas in Uganda's Mgahinga National Park.
A rare Appalachian Mountain swamp in North Carolina has seen more than it's fair share of Bigfoot sightings.
YouTuber Nick Uhas recently tried to set a new world record by creating a mountain of 'elephant toothpaste'.
New research has suggested that Machu Picchu's location on intersecting fault lines is no coincidence.
A shallow lake situated high up in the mountains of India is filled with skeletal remains dating back centuries.
Archaeologists have unearthed evidence of Ice Age human habitation in the Bale Mountains of Ethiopia.