APACHE JUNCTION, AZ - The search and rescue operation continues as crews race to find a missing hiker in the Superstition Mountains, east of the Valley.
Kenny Clark of Gilbert is in his late 50s and has been missing since 6:30 a.m. Sunday.
Teams from the Maricopa and Pinal County Sheriff's Offices have spent the past three days and nights searching for Clark. They stop only in the late afternoon when the weather gets too hot.
Due to the extreme Arizona heat, a large part of the search operations are taking place at night. Crews are using a combination of Night and Thermal vision goggles. ABC 15 tested out some of the identical nighttime vision enhancement equipment courtesy of Tempe based Nivisys . They offer state-of-the-art gear to the public.
Clark is described as an experienced hiker and went out hiking by himself with a gallon of water on his back.
He was supposed to pick up his grandson later in the afternoon. His family told ABC15 they knew something was wrong when he didn't return from what was supposed to be a four to five hour hike.
There are about 50 search and rescue crews scouring 260 square miles of desert looking for Clark.
One of the biggest challenges for search and rescue teams at night is having to struggle with their thermal cameras to find the hiker because the ground is too hot in July for the cameras to work their best.
The Pinal and Maricopa County Sheriff's offices have a lot of resources including helicopters and search dogs, which will play a big part in night time searches.
Search and rescue crews will work all night and plan to go until Wednesday afternoon to find Kenny Clark. His family is very worried.