How far away do I need to be positioned from a government maintained road to discharge a firearm legally? I know it is unlawful to shoot from and over government maintained roads but what about 20 yards or even 100 yards from the edge of the road?
There is no set distance that someone would have to be from a road to legally shoot. The law says that it is unlawful to shoot from or across a Public "Highway" A public highway is defined by Idaho code in Idaho Fish and Game Title 36 as:
"Public highway" means the traveled portion of, and the shoulders on each side of, any road maintained by any governmental entity for public travel, and includes all bridges, culverts, overpasses, fills, and other structures within the limits of the right-of-way of any such road.