Steven Barone, who runs YouTube channel UFOs In THE USA, is convinced he is filming alien activity or even top secret US Airforce test craft leaving the Blue Diamond Hills, which is near the Nellis US Airforce base in Nevada.
But, as Express.co.uk reported this week, sceptics have claimed they are just the headlights of vehicles coming down the hillside that he is recording.
In a bid to prove the critics wrong, Mr Barone filmed himself trying to climb the remote hillside to prove that no vehicles drive on it, and to also see if he could find a secret entrance to the base.
In a video, uploaded to YouTube, he said: “Too many people believe that the lights on this hill are off-road vehicles.
“There is no way that is possible. The land on this small mountain is under BLM control.
“It is also very close to National Conservation land.
“Riding any motorised vehicles is strictly forbidden and carries a huge fine if caught.
“Whatever these lights are they are extremely strange.
“I have videos of the same objects lining up in the air – as many as 12 or 13 of them – in a perfectly horizontal row which would be impossible if they were on the ground.
“I have checked and double checked and no clubs, businesses or anybody else has been riding up there.
“The only legal place to drive off-road vehicles is about 30 miles from here.”
He and his wife Sue set out to try to climb the hill in the video, but were left scratching their heads at the bottom.
He added: “My wife, me and our dog attempted to climb it a couple weeks ago so I could prove the soil up there was undisturbed but we couldn’t find any way to get up there.
“Everything is fenced in, there is construction going on, but we cannot find a way to get in here, everything is blocked off.”
Mr Barone has been filming the area for three years and has scores of videos on his YouTube channel, that he suggests are alien UFOs or top secret US space vehicles hovering over the Nellis Air Force Base.
The base, like top-secret Area 51 in the Nevada desert, is alleged by conspiracy theorists to be where the US authorities hide the remains of crashed flying saucers and dead aliens, and where secretive technology is developed and tested.
Some even claim that visiting aliens have been allowed to use the bases to keep them from public view.
Fellow UFO conspiracy theorist Scott C Waring also believes there is an alien base on the hillside.