The National Park Service reports Martin O'Connor is alive.
The La Porte man went missing at the Grand Canyon last month but has been found alive.
Rangers found 58-year-old Martin O'Connor on Thursday on a difficult trail along the canyon's South Rim.
O'Connor had last been seen at a lodge in Grand Canyon Village on December 22nd.
After he was found O'Conner was airlifted from the canyon in a helicopter.
O'Connor is undergoing a medical evaluation after being exposed to the park's winter conditions.