Like Daisy, I hike with my spouse and within visual contact on the trail. I take the food, water filter, and tent, she takes the stove and dishes. We each carry our own sleeping bag, clothes, water and snacks for the day...

And I usually carry about 25% more weight, because I am bigger, stronger, and faster.

When We hike with others we ask them to hike between us--so they don't wander off into problems...
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Check our our website: http://www.backpackthesierra.com/

Or just read a good mystery novel set in the Sierra; https://www.amazon.com/Danger-Falling-Rocks-Paul-Wagner/dp/0984884963