Last Saturday, July 12th, we picked up our car at Onion Valley (Kearsarge Pass), in the Southern Sierra after a 50-mile trip to Mt. Whitney. During a violent thunderstorm, we grabbed our ice chest from the bear box. When we returned to Mt. Shasta - 8 hrs. north, we opened the ice chest and found that someone had left a resupply cache for a group hiking the John Muir Trail.
If you know anyone hiking the JMT by the name of Platney, Herbst, Adams, you might alert them that their resupply cache is NOT waiting for them at Onion Valley on July 20. I imagine they are hiking, but hope a friend or relative reads this.
I don't know why anyone would put the package in our ice chest and not just leave it in the box. We were in a hurry to get out of there before they closed the road (we were the last car allowed out); otherwise, I might have checked inside before returning home.