Unified Police spokesman Lt. Justin Hoyal said the man began his hike at 5 in the morning. At 7:30 in the evening he called for help, telling police he was lost and dehydrated.
A Life Flight helicopter team looked for the lost hiker just before dark, but could not locate him. Lt. Hoyal says police were able to send a few text messages before the man's phone went dead.
Three ground teams led the search.