Hard to say High Country Killer.

Do you know about how high the blood was on the trees and vegetation? This can give you an idea of where the arrow struck. Also, you did say the blood seemed old. I'm thinking the dark red blood is a muscle hit. If that is so, he may just be nursing a wound and will survive.

Anyway, I applaud your effort in trying to locate this deer. If you don't find him, do NOT let this incident rock your confidence. It can happen to anyone.

Take care,

iSnipe