The term for this is "Cathole
The proper use of a cathole:
Use a 6-8 inch deep hole
away from the campsite, and at least 100 feet from the nearest water
. After use, cover
the hole with soil
. DO NOT put toilet paper
in the cathole.
behind this is that nature
will take care of breaking down your waste product
s over time, just like it does with the wastes of all other animals
Most toilet paper will not break down the same way, that's why you don't put it in the hole.
In basic training they told us to carry a bag to put waste in that wouldn't break down naturaly. Also, leaving nothing behind but a covered-up hole with poop in it made it harder for the enemy to detect you were in the area.