Park officials are seeking information about people who may have been in a remote area when flash floods occurred. A historic lodge was overwhelmed, and some travelers are now unaccounted for. The number of missing people was initially reported to be at least 20, but this was later revised to at least 15.

Evacuations have taken place, with 62 people removed from the affected area by Sunday morning. Further evacuations are expected.

Details about the missing individuals and the evacuation efforts are available from the National Park Service, which is working to track down those who may have been hiking or camping in the area.