Reid said Yellowstone officials are still assessing what damage may have been caused to the hot spring. The group posted an apology on its website and social networks, expressing regret for their actions and offering to donate $5,000 to the park. — Yellowstone National Park rangers have not been able to contact or locate a group of men from Vancouver who allegedly walked onto a sensitive hot spring, and it’s possible they have returned to Canada, a park official said Wednesday. Hot springs have sensitive wet, soft bacterial mats that play a role in the colours associated with the spring, she said. Only three were charged because rangers were still trying to positively identify the fourth person involved, Reid said.

Source: National Post May 19, 2016 11:11 UTC