Video has emerged of an elusive mountain lion swimming across part of a reservoir in Utah.

The filmer captured the mountain lion swimming across part of the Flaming Gorge Reservoir on August 7.

"Check this out," says Michael Pearson in the video as he filmed the mountain lion. "We don't want to get too close to him but we want to see him when he gets out on the shore."

The mountain lion then gets onto the shore before looking back in the direction of the camera.