Elk don’t rest during the rut, not even on Labor Day. Stephen Dana caught this amazing footage last year over the long holiday weekend and shared it to Facebook, with the video quickly going viral.

“I normally keep my [videos] on ‘Friends Only,’ but I knew this one was special and more people needed to see it, so I posted it as ‘Public,’” Dana wrote in the video’s comment section. “Never would have thought it would blow up this big. Fun to watch it grow. If it makes people dream of big bulls then it has accomplished its goal.”