Sonora:

 Navy
 Desert
 Survival
 Training

The author and his teammate check their gear before participation in the Navy's Desert Environment Survival Training.

It was hot. We were told the air temperature was 94 degrees and the ground temperature was 118...

By Richard 8. McSwain
PHOTOS BY RICHARD B. McSWAIN AND GREGORY D. DOUGHERlY

LEFT - Example of a transpiration bag.

RIGHT - Example of a vegetation still

BELOW - Example of a solar still.

ABOVE- U.S Navy Petty Officer Greg Dougherty demonstrates the proper use of a signaling mirror.