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security is essential to the success of all backpack trips. Center
for Wilderness Studies has it covered in training on a trek and in
classroom instruction. In the 1980's there were few choices. In the
90's durable canisters with complex lids, to counter bear manipulation,
became available. Here are a few of the skills used to protect food:
Tree to tree, top left, rocks to rocks top rt, and rock face for rodent
protection, far left. Lee Bergthold sets a single tree branch hang,
left; the most used type of hang. The "rules" don't always
match the tree forms in the Sierra: 12' high, 10' out from the trunk,
and 1"-2" from branch end. |
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