Park officials are seeking information about people who may have been in a remote area affected by flash floods. A historic lodge and surrounding trails were overwhelmed, leaving some 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 area by Sunday morning. Further evacuations are expected.

Details about the affected area and the people being sought are available from the National Park Service, which is trying to track down travelers and campers who may have been stranded.