Three years ago I started logging every water source on my Sierra trips in a $2 notebook
Last month on the Rae Lakes loop I pulled it out at the third creek crossing past the bridge and realized the flow notes I jotted in 2021 let me skip a dry 2 mile stretch that two guys ahead of me had to backtrack, so now I'm wondering if anyone else keeps old route notes like this or if I'm just carrying dead weight.