Thomas Irwin, 73, of Indianapolis, was last seen on Jan. 15, 2024, while hiking the Petroglyph Point Train in the national park located in southwestern Colorado. His family contacted the park the next day, and a search and rescue operation began, the National Park Service said in a news release on Monday.

Authorities on Tuesday announced that the remains of 73-year-old hiker Thomas Irwin were located during an off-trail grid search at Mesa Verde National Park in Colorado following an exhaustive search and rescue operation that began more than a year ago.

Rangers have found the remains of a man who went missing in Mesa Verde National Park more than a year ago, according to the National Park Service (NPS). Thomas Irwin, 73, of Indianapolis, was last seen on Jan.