"Most dangerous and potentially harmful encounters occur because people fail to leave the animals alone or get too close," a Colorado Parks and Wildlife rep said.
The animal's "non-typical" antlers were removed, but officials said it will not harm the elk and he will regrow antlers next year.
Love, or at least procreation, is in the air — especially in the animal kingdom.
The elk was tracked down by park officials who urged residents to consider the impact of human waste on wildlife.
"The National Park Service has a responsibility to protect and preserve these beautiful animals. The idea that depriving them of food and water somehow fulfills that responsibility isn't just absurd, it's undeniably inhumane," Kate Barnekow, the organization's attorney, said.
Witnesses told local media that the elk was also charging at other golf carts on the Evergreen Golf Course.
The bear chased the male elk into the Yellowstone River before killing it and dragging it to the bank.
The unidentified man was photographed following a male elk off the trail despite calls from bystanders to stop.
Colorado Parks and Wildlife also shared footage of elk running through the morning fog.
The website Hunter Nation described the president's son as "the modern-day Teddy Roosevelt."
Only game that's been "accidentally struck" can be consumed as meat. So drivers can't intentionally mow down a wild animal for fast food.
The fisherman said he believed the antlers and a lower jawbone that was discovered in 2014 belonged to the same animal.
The woman sustained serious injuries after the elk appeared to try to protect its calf.
The fires that raged after the accident have stopped burning, but questions remain about oil and rail safety in a region known for toxic spills.