I found a nice little cache of gels and an HVO whistle just south of C3 (I think).
I was going to bring them back to the lost and found, but I got tired of them rubbing in my pocket, so I dropped them at one of the water stops (C11 or 12, maybe).
Hopefully somebody ate them and maybe you can get your whistle back.
Yeah, on the way to C3 would be about right...5 gels & a whistle. Oh well. Some raccoon will get a sugar high and years from now, there will be a family of squirrels whistlin' away on Clear Lake Scout Reservation.