Lost iPhone at Lower Cathedral lake / Dozier dome

A relative lost her iPhone while hiking out from lower cathedral lake (backside of dozier dome). She is offering a $200 reward for its safe return. Here is her description of where to look:

We were coming from the south side of cathedral lake. We decided to follow the creek bed from the spill down to Tenaya Lake. As we began to descend, I stopped to tuck in to a grove of trees to go pee, and I think I set down my phone on a ledge in the grove. Otherwise, immediately thereafter, we were inching down the steep granite on our butts and it may have been pushed out of my pocket as I creeped down the top of the canyon. We noticed it was gone by the time we got to the trees at the bottom of the spill, but by that time, it was nearing nightfall, so we didn’t have time to hime back up to look for it, as we would have risked losing enough light to get out of the creak bed.

$200 reward for finding the phone. Hoping to find it before the rains hit so I have a chance of recovering the last year of photos of my kids.