Shelter  

Debris Huts
A simple and almost universal shelter

Brush Shelters
Shelters made from live branches etc.

Thatch & Grass Shelters
Made from long grasses

Using Trees as shelters
Sometimes you can take advantage of a fallen tree as a ready-made shelter framework

Yurt
A traditional style of shelter, although not quite as primitive (or basic) as others featured here.

Teepees
The traditional Native Indian shelter

Wigwam
The traditional Ojibway wigwam type of shelter, made from bark on a stick frame

Snow Shelters
Versatile and easy to make winter shelters

Caves
Natural and dry, these are sometimes the ideal shelter, especially in winter

Scout Pits
Stealth shelters dug into the ground

At Home In The Wilderness Part I: Shelter
by Tom Brown Jr.,  from Mother Earth News, Issue #71

At Home In The Wilderness Part IX: Advanced Survival Shelters
by Tom Brown Jr., from Mother Earth News, Issue #95

Living Comfortably in a Long Term Shelter
by Seth Recarde, from True Tracks, Summer-Fall 1997

Shelter Heating with Hot Rocks
by Frank Sherwood, from The Tracker magazine, Summer 1982