The venom can be absorbed by the mucus membranes of your mouth or through ingestion. That's what a
Sawyer extractor is for. Thankfully, I've never had to put it to the test.
I've hiked in that area and found that there's a healthy population of
Southern Pacific Rattlesnakes near the coast, but more of the
Red Diamond Rattlesnakes as you move inland.
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Hope for the best and prepare for the worst.
The object in life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane