I read recently in an article where Montana required their $8 conservation license in order to legally shed hunt... but I cannot find that in their regulations. What I did find... Antler/Horn/ Skull Possession - Individuals may possess, transport, sell, or purchase naturally shed antlers, or the antlers with a skull or portion of a skull attached from a game animal that has died from natural causes and that has not been illegally killed. Carcasses and parts of elk, deer, antelope and moose killed in vehicular collisions may be taken and possessed but only with a Vehicle-Killed Wildlife Salvage Permit. No other game animals may be salvaged by this permit. It is illegal to possess a bighorn sheep head/horn picked up in the wild.