A huge dog named Floyd had to be rescued while out hiking with his owner in the US state of Utah last week.

According to local media, the 86kg mastiff and his owner had hiked up the Grandeur Peak trail near Salt Lake City.

However, when the time came to get down, Floyd was too tired and refused to budge.

His owner was unable to carry the gentle giant down the hill and so Salt Lake County Sheriff’s Search and Rescue team was called by other hikers who passed Floyd on the trail and saw his owner needed help.

Rescuers arrived and strapped Floyd to a stretcher and carried him down to safety.

"Floyd was a good boy and was happy to be assisted," the rescue team said on Facebook.