Field-Expedient Lean-To

If you are in a wooded area and have enough natural materials, you can make a field-expedient lean-to (Figure 5-9) without the aid of tools or with only a knife. It takes longer to make this type of shelter than it does to make other types, but it will protect you from the elements.

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Water Purification

Rainwater collected in clean containers or in plants is usually safe for drinking. However, purify water from lakes, ponds, springs, or streams. When possible, purify all water you got from vegetation or from the ground by using iodine or chlorine, or by boiling.

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